931727381864 has 64 divisors (see below), whose sum is σ = 1963514995200. Its totient is φ = 412338015936.

The previous prime is 931727381831. The next prime is 931727381899. The reversal of 931727381864 is 468183727139.

It is a happy number.

It is a super-2 number, since 2×931727381864² (a number of 25 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, 2948654 + ... + 3249309.

It is an arithmetic number, because the mean of its divisors is an integer number (30679921800).

Almost surely, 2^931727381864 is an apocalyptic number.

It is an amenable number.

931727381864 is an abundant number, since it is smaller than the sum of its proper divisors (1031787613336).

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

931727381864 is a wasteful number, since it uses less digits than its factorization.

931727381864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198054 (or 6198050 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 59.

The spelling of 931727381864 in words is "nine hundred thirty-one billion, seven hundred twenty-seven million, three hundred eighty-one thousand, eight hundred sixty-four".