31057473984 has 56 divisors (see below), whose sum is σ = 82242385680. Its totient is φ = 10343737344.

The previous prime is 31057473971. The next prime is 31057474003. The reversal of 31057473984 is 48937475013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161262 + ... + 296850.

It is an arithmetic number, because the mean of its divisors is an integer number (1468614030).

Almost surely, 2^31057473984 is an apocalyptic number.

It is an amenable number.

31057473984 is an abundant number, since it is smaller than the sum of its proper divisors (51184911696).

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

31057473984 is a wasteful number, since it uses less digits than its factorization.

31057473984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136797 (or 136787 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 31057473984 in words is "thirty-one billion, fifty-seven million, four hundred seventy-three thousand, nine hundred eighty-four".