31679880376 has 64 divisors (see below), whose sum is σ = 62593689600. Its totient is φ = 15017129088.

The previous prime is 31679880319. The next prime is 31679880377. The reversal of 31679880376 is 67308897613.

It is a super-2 number, since 2×31679880376² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31679880376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31679880377) 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, 1564251 + ... + 1584373.

It is an arithmetic number, because the mean of its divisors is an integer number (978026400).

Almost surely, 2^31679880376 is an apocalyptic number.

It is an amenable number.

31679880376 is a deficient number, since it is larger than the sum of its proper divisors (30913809224).

31679880376 is a wasteful number, since it uses less digits than its factorization.

31679880376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20308 (or 20304 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 31679880376 in words is "thirty-one billion, six hundred seventy-nine million, eight hundred eighty thousand, three hundred seventy-six".