31129409993276 has 48 divisors (see below), whose sum is σ = 62903878027200. Its totient is φ = 13202963048448.

The previous prime is 31129409993261. The next prime is 31129409993281. The reversal of 31129409993276 is 67239990492113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54767870 + ... + 55333338.

It is an arithmetic number, because the mean of its divisors is an integer number (1310497458900).

Almost surely, 2^{31129409993276} is an apocalyptic number.

It is an amenable number.

31129409993276 is an abundant number, since it is smaller than the sum of its proper divisors (31774468033924).

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

31129409993276 is a wasteful number, since it uses less digits than its factorization.

31129409993276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585846 (or 585844 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 65.

The spelling of 31129409993276 in words is "thirty-one trillion, one hundred twenty-nine billion, four hundred nine million, nine hundred ninety-three thousand, two hundred seventy-six".