31914293928 has 32 divisors (see below), whose sum is σ = 87038984160. Its totient is φ = 9670998080.

The previous prime is 31914293927. The next prime is 31914293989. The reversal of 31914293928 is 82939241913.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31914293923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60443475 + ... + 60444002.

It is an arithmetic number, because the mean of its divisors is an integer number (2719968255).

Almost surely, 2^31914293928 is an apocalyptic number.

It is an amenable number.

31914293928 is an abundant number, since it is smaller than the sum of its proper divisors (55124690232).

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

31914293928 is a wasteful number, since it uses less digits than its factorization.

31914293928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120887497 (or 120887493 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The spelling of 31914293928 in words is "thirty-one billion, nine hundred fourteen million, two hundred ninety-three thousand, nine hundred twenty-eight".