It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 609 264 is not a prime number.
For example, 742 609 264 can be divided by 2: 742 609 264 / 2 = 371 304 632.
For 742 609 264 to be a prime number, it would have been required that 742 609 264 has only two divisors, i.e., itself and 1.
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742 609 264 is an even number, because it is evenly divisible by 2: 742 609 264 / 2 = 371 304 632.
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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 742 609 264 is about 27 250.858.
Thus, the square root of 742 609 264 is not an integer, and therefore 742 609 264 is not a square number.
The square of a number (here 742 609 264) is the result of the product of this number (742 609 264) by itself (i.e., 742 609 264 × 742 609 264); the square of 742 609 264 is sometimes called "raising 742 609 264 to the power 2", or "742 609 264 squared".
The square of 742 609 264 is 551 468 518 978 621 696 because 742 609 264 × 742 609 264 = 742 609 2642 = 551 468 518 978 621 696.
As a consequence, 742 609 264 is the square root of 551 468 518 978 621 696.
742 609 264 is a number with 9 digits.
The multiples of 742 609 264 are all integers evenly divisible by 742 609 264, that is all numbers such that the remainder of the division by 742 609 264 is zero. There are infinitely many multiples of 742 609 264. The smallest multiples of 742 609 264 are: