31144343896 has 32 divisors (see below), whose sum is σ = 58713314400. Its totient is φ = 15487614720.

The previous prime is 31144343767. The next prime is 31144343903. The reversal of 31144343896 is 69834344113.

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, 1703926 + ... + 1722106.

It is an arithmetic number, because the mean of its divisors is an integer number (1834791075).

Almost surely, 2^31144343896 is an apocalyptic number.

It is an amenable number.

31144343896 is a deficient number, since it is larger than the sum of its proper divisors (27568970504).

31144343896 is a wasteful number, since it uses less digits than its factorization.

31144343896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19339 (or 19335 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The spelling of 31144343896 in words is "thirty-one billion, one hundred forty-four million, three hundred forty-three thousand, eight hundred ninety-six".