31975403376 has 80 divisors (see below), whose sum is σ = 96599047424. Its totient is φ = 8923364352.

The previous prime is 31975403371. The next prime is 31975403387. The reversal of 31975403376 is 67330457913.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31975403371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1092121 + ... + 1121016.

Almost surely, 2^31975403376 is an apocalyptic number.

It is an amenable number.

31975403376 is an abundant number, since it is smaller than the sum of its proper divisors (64623644048).

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

31975403376 is a wasteful number, since it uses less digits than its factorization.

31975403376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213198 (or 2213192 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 48.

The spelling of 31975403376 in words is "thirty-one billion, nine hundred seventy-five million, four hundred three thousand, three hundred seventy-six".