318875438664 has 64 divisors (see below), whose sum is σ = 886841865600. Its totient is φ = 106162602048.

The previous prime is 318875438659. The next prime is 318875438689. The reversal of 318875438664 is 466834578813.

318875438664 is a `hidden beast` number, since 3 + 1 + 8 + 8 + 7 + 543 + 86 + 6 + 4 = 666.

It is a super-2 number, since 2×318875438664² (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 15 ways as a sum of consecutive naturals, for example, 719119 + ... + 1074654.

It is an arithmetic number, because the mean of its divisors is an integer number (13856904150).

Almost surely, 2^318875438664 is an apocalyptic number.

It is an amenable number.

318875438664 is an abundant number, since it is smaller than the sum of its proper divisors (567966426936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318875438664 is a wasteful number, since it uses less digits than its factorization.

318875438664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794611 (or 1794601 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 63.

The spelling of 318875438664 in words is "three hundred eighteen billion, eight hundred seventy-five million, four hundred thirty-eight thousand, six hundred sixty-four".