31984082928 has 80 divisors (see below), whose sum is σ = 104921340160. Its totient is φ = 9138308544.

The previous prime is 31984082899. The next prime is 31984082929. The reversal of 31984082928 is 82928048913.

31984082928 is a `hidden beast` number, since 3 + 198 + 408 + 29 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31984082929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5285350 + ... + 5291397.

It is an arithmetic number, because the mean of its divisors is an integer number (1311516752).

Almost surely, 2^31984082928 is an apocalyptic number.

It is an amenable number.

31984082928 is an abundant number, since it is smaller than the sum of its proper divisors (72937257232).

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

31984082928 is a wasteful number, since it uses less digits than its factorization.

31984082928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576771 (or 10576759 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 31984082928 in words is "thirty-one billion, nine hundred eighty-four million, eighty-two thousand, nine hundred twenty-eight".