31007204896 has 48 divisors (see below), whose sum is σ = 63045077760. Its totient is φ = 14996240640.

The previous prime is 31007204881. The next prime is 31007204897. The reversal of 31007204896 is 69840270013.

It is a super-2 number, since 2×31007204896² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31007204897) 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, 2450875 + ... + 2463493.

It is an arithmetic number, because the mean of its divisors is an integer number (1313439120).

Almost surely, 2^31007204896 is an apocalyptic number.

It is an amenable number.

31007204896 is an abundant number, since it is smaller than the sum of its proper divisors (32037872864).

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

31007204896 is a wasteful number, since it uses less digits than its factorization.

31007204896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137 (or 15129 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 31007204896 in words is "thirty-one billion, seven million, two hundred four thousand, eight hundred ninety-six".