31597225316 has 12 divisors (see below), whose sum is σ = 55298154240. Its totient is φ = 15797752680.

The previous prime is 31597225301. The next prime is 31597225343. The reversal of 31597225316 is 61352279513.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128456 + ... + 282303.

It is an arithmetic number, because the mean of its divisors is an integer number (4608179520).

Almost surely, 2^31597225316 is an apocalyptic number.

It is an amenable number.

31597225316 is a deficient number, since it is larger than the sum of its proper divisors (23700928924).

31597225316 is a wasteful number, since it uses less digits than its factorization.

31597225316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429994 (or 429992 counting only the distinct ones).

The product of its digits is 340200, while the sum is 44.

The spelling of 31597225316 in words is "thirty-one billion, five hundred ninety-seven million, two hundred twenty-five thousand, three hundred sixteen".