317994762490 has 8 divisors (see below), whose sum is σ = 572390572500. Its totient is φ = 127197904992.

The previous prime is 317994762457. The next prime is 317994762509. The reversal of 317994762490 is 94267499713.

It can be written as a sum of positive squares in 2 ways, for example, as 294606871729 + 23387890761 = 542777^2 + 152931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×317994762490² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15899738115 + ... + 15899738134.

Almost surely, 2^317994762490 is an apocalyptic number.

317994762490 is a deficient number, since it is larger than the sum of its proper divisors (254395810010).

317994762490 is a wasteful number, since it uses less digits than its factorization.

317994762490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799476256.

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 317994762490 in words is "three hundred seventeen billion, nine hundred ninety-four million, seven hundred sixty-two thousand, four hundred ninety".