317977689864 has 32 divisors (see below), whose sum is σ = 841705650720. Its totient is φ = 99757706496.

The previous prime is 317977689857. The next prime is 317977689901. The reversal of 317977689864 is 468986779713.

It is a super-2 number, since 2×317977689864² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389678134 + ... + 389678949.

It is an arithmetic number, because the mean of its divisors is an integer number (26303301585).

Almost surely, 2^317977689864 is an apocalyptic number.

317977689864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

317977689864 is an abundant number, since it is smaller than the sum of its proper divisors (523727960856).

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

317977689864 is a wasteful number, since it uses less digits than its factorization.

317977689864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779357109 (or 779357105 counting only the distinct ones).

The product of its digits is 768144384, while the sum is 75.

The spelling of 317977689864 in words is "three hundred seventeen billion, nine hundred seventy-seven million, six hundred eighty-nine thousand, eight hundred sixty-four".