317138805680 has 40 divisors (see below), whose sum is σ = 739575421584. Its totient is φ = 126472262400.

The previous prime is 317138805647. The next prime is 317138805749. The reversal of 317138805680 is 86508831713.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5961791 + ... + 6014750.

Almost surely, 2^317138805680 is an apocalyptic number.

It is an amenable number.

317138805680 is an abundant number, since it is smaller than the sum of its proper divisors (422436615904).

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

317138805680 is a wasteful number, since it uses less digits than its factorization.

317138805680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976885 (or 11976879 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 317138805680 in words is "three hundred seventeen billion, one hundred thirty-eight million, eight hundred five thousand, six hundred eighty".