31892912112 has 40 divisors (see below), whose sum is σ = 82453222656. Its totient is φ = 10622815936.

The previous prime is 31892912087. The next prime is 31892912131. The reversal of 31892912112 is 21121929813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191448 + ... + 316919.

Almost surely, 2^31892912112 is an apocalyptic number.

It is an amenable number.

31892912112 is an abundant number, since it is smaller than the sum of its proper divisors (50560310544).

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

31892912112 is a wasteful number, since it uses less digits than its factorization.

31892912112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509685 (or 509679 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The spelling of 31892912112 in words is "thirty-one billion, eight hundred ninety-two million, nine hundred twelve thousand, one hundred twelve".