31924030856 has 32 divisors (see below), whose sum is σ = 63484560000. Its totient is φ = 14997954816.

The previous prime is 31924030849. The next prime is 31924030861. The reversal of 31924030856 is 65803042913.

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, 114476 + ... + 277403.

It is an arithmetic number, because the mean of its divisors is an integer number (1983892500).

Almost surely, 2^31924030856 is an apocalyptic number.

It is an amenable number.

31924030856 is a deficient number, since it is larger than the sum of its proper divisors (31560529144).

31924030856 is a wasteful number, since it uses less digits than its factorization.

31924030856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392501 (or 392497 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 31924030856 in words is "thirty-one billion, nine hundred twenty-four million, thirty thousand, eight hundred fifty-six".