31077998676 has 30 divisors (see below), whose sum is σ = 81244028250. Its totient is φ = 10359332784.

The previous prime is 31077998671. The next prime is 31077998689. The reversal of 31077998676 is 67689977013.

It can be written as a sum of positive squares in only one way, i.e., 31072523076 + 5475600 = 176274^2 + 2340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31077998671) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47959551 + ... + 47960198.

It is an arithmetic number, because the mean of its divisors is an integer number (2708134275).

Almost surely, 2^31077998676 is an apocalyptic number.

31077998676 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31077998676 is an abundant number, since it is smaller than the sum of its proper divisors (50166029574).

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

31077998676 is a wasteful number, since it uses less digits than its factorization.

31077998676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95919765 (or 95919754 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 31077998676 in words is "thirty-one billion, seventy-seven million, nine hundred ninety-eight thousand, six hundred seventy-six".