317479283209 has 27 divisors (see below), whose sum is σ = 352147789287. Its totient is φ = 286008742800.

The previous prime is 317479283161. The next prime is 317479283243. The reversal of 317479283209 is 902382974713.

It is a happy number.

The square root of 317479283209 is 563453.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3498367609 + 313980915600 = 59147^2 + 560340^2 .

It is not a de Polignac number, because 317479283209 - 2³¹ = 315331799561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317479283209.

It is not an unprimeable number, because it can be changed into a prime (317479283509) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1121834782 + ... + 1121835064.

Almost surely, 2^317479283209 is an apocalyptic number.

317479283209 is the 563453-rd square number.

317479283209 is the 281727-th centered octagonal number.

It is an amenable number.

317479283209 is a deficient number, since it is larger than the sum of its proper divisors (34668506078).

317479283209 is an frugal number, since it uses more digits than its factorization.

317479283209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 317479283209 in words is "three hundred seventeen billion, four hundred seventy-nine million, two hundred eighty-three thousand, two hundred nine".