317318918566512 has 40 divisors (see below), whose sum is σ = 830117002167040. Its totient is φ = 104434074463680.

The previous prime is 317318918566501. The next prime is 317318918566547. The reversal of 317318918566512 is 215665819813713.

It is a super-2 number, since 2×317318918566512² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41840570914 + ... + 41840578497.

It is an arithmetic number, because the mean of its divisors is an integer number (20752925054176).

Almost surely, 2^{317318918566512} is an apocalyptic number.

It is an amenable number.

317318918566512 is an abundant number, since it is smaller than the sum of its proper divisors (512798083600528).

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

317318918566512 is a wasteful number, since it uses less digits than its factorization.

317318918566512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83681149501 (or 83681149495 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 66.

The spelling of 317318918566512 in words is "three hundred seventeen trillion, three hundred eighteen billion, nine hundred eighteen million, five hundred sixty-six thousand, five hundred twelve".