315317506957 has 4 divisors (see below), whose sum is σ = 318378842080. Its totient is φ = 312256171836.

The previous prime is 315317506951. The next prime is 315317506981. The reversal of 315317506957 is 759605713513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315317506957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315317506951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530667407 + ... + 1530667612.

It is an arithmetic number, because the mean of its divisors is an integer number (79594710520).

Almost surely, 2^315317506957 is an apocalyptic number.

It is an amenable number.

315317506957 is a deficient number, since it is larger than the sum of its proper divisors (3061335123).

315317506957 is a wasteful number, since it uses less digits than its factorization.

315317506957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061335122.

The product of its (nonzero) digits is 2976750, while the sum is 52.

The spelling of 315317506957 in words is "three hundred fifteen billion, three hundred seventeen million, five hundred six thousand, nine hundred fifty-seven".