31081374680 has 16 divisors (see below), whose sum is σ = 69933093120. Its totient is φ = 12432549856.

The previous prime is 31081374677. The next prime is 31081374707. The reversal of 31081374680 is 8647318013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388517144 + ... + 388517223.

It is an arithmetic number, because the mean of its divisors is an integer number (4370818320).

Almost surely, 2^31081374680 is an apocalyptic number.

It is an amenable number.

31081374680 is an abundant number, since it is smaller than the sum of its proper divisors (38851718440).

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

31081374680 is a wasteful number, since it uses less digits than its factorization.

31081374680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777034378 (or 777034374 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 31081374680 in words is "thirty-one billion, eighty-one million, three hundred seventy-four thousand, six hundred eighty".