3131404975616 has 40 divisors (see below), whose sum is σ = 6256868303400. Its totient is φ = 1565658851328.

The previous prime is 3131404975609. The next prime is 3131404975627. The reversal of 3131404975616 is 6165794041313.

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 3 ways as a sum of consecutive naturals, for example, 26231135 + ... + 26350241.

It is an arithmetic number, because the mean of its divisors is an integer number (156421707585).

Almost surely, 2^{3131404975616} is an apocalyptic number.

It is an amenable number.

3131404975616 is a deficient number, since it is larger than the sum of its proper divisors (3125463327784).

3131404975616 is an equidigital number, since it uses as much as digits as its factorization.

3131404975616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170474 (or 170458 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 3131404975616 in words is "three trillion, one hundred thirty-one billion, four hundred four million, nine hundred seventy-five thousand, six hundred sixteen".