It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 359 764 is not a prime number.
For example, 509 359 764 can be divided by 2: 509 359 764 / 2 = 254 679 882.
For 509 359 764 to be a prime number, it would have been required that 509 359 764 has only two divisors, i.e., itself and 1.
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509 359 764 is an even number, because it is evenly divisible by 2: 509 359 764 / 2 = 254 679 882.
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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 509 359 764 is about 22 569.000.
Thus, the square root of 509 359 764 is not an integer, and therefore 509 359 764 is not a square number.
The square of a number (here 509 359 764) is the result of the product of this number (509 359 764) by itself (i.e., 509 359 764 × 509 359 764); the square of 509 359 764 is sometimes called "raising 509 359 764 to the power 2", or "509 359 764 squared".
The square of 509 359 764 is 259 447 369 182 135 680 because 509 359 764 × 509 359 764 = 509 359 7642 = 259 447 369 182 135 680.
As a consequence, 509 359 764 is the square root of 259 447 369 182 135 680.
509 359 764 is a number with 9 digits.
The multiples of 509 359 764 are all integers evenly divisible by 509 359 764, that is all numbers such that the remainder of the division by 509 359 764 is zero. There are infinitely many multiples of 509 359 764. The smallest multiples of 509 359 764 are: