It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 738 644 058 is not a prime number.
For example, 738 644 058 can be divided by 2: 738 644 058 / 2 = 369 322 029.
For 738 644 058 to be a prime number, it would have been required that 738 644 058 has only two divisors, i.e., itself and 1.
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738 644 058 is an even number, because it is evenly divisible by 2: 738 644 058 / 2 = 369 322 029.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 738 644 058 is about 27 178.007.
Thus, the square root of 738 644 058 is not an integer, and therefore 738 644 058 is not a square number.
The square of a number (here 738 644 058) is the result of the product of this number (738 644 058) by itself (i.e., 738 644 058 × 738 644 058); the square of 738 644 058 is sometimes called "raising 738 644 058 to the power 2", or "738 644 058 squared".
The square of 738 644 058 is 545 595 044 418 707 392 because 738 644 058 × 738 644 058 = 738 644 0582 = 545 595 044 418 707 392.
As a consequence, 738 644 058 is the square root of 545 595 044 418 707 392.
738 644 058 is a number with 9 digits.
The multiples of 738 644 058 are all integers evenly divisible by 738 644 058, that is all numbers such that the remainder of the division by 738 644 058 is zero. There are infinitely many multiples of 738 644 058. The smallest multiples of 738 644 058 are: