31904055484 has 24 divisors (see below), whose sum is σ = 64035201888. Its totient is φ = 13624504320.

The previous prime is 31904055467. The next prime is 31904055509. The reversal of 31904055484 is 48455040913.

It is a self number, because there is not a number n which added to its sum of digits gives 31904055484.

It is a congruent number.

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, 2019589 + ... + 2035324.

It is an arithmetic number, because the mean of its divisors is an integer number (2668133412).

Almost surely, 2^31904055484 is an apocalyptic number.

It is an amenable number.

31904055484 is an abundant number, since it is smaller than the sum of its proper divisors (32131146404).

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

31904055484 is a wasteful number, since it uses less digits than its factorization.

31904055484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055205 (or 4055203 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 31904055484 in words is "thirty-one billion, nine hundred four million, fifty-five thousand, four hundred eighty-four".