31797876976628 has 48 divisors (see below), whose sum is σ = 66723414094848. Its totient is φ = 12971861856000.

The previous prime is 31797876976609. The next prime is 31797876976643. The reversal of 31797876976628 is 82667967879713.

It is a happy number.

It is a super-2 number, since 2×31797876976628² (a number of 28 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 31797876976628.

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, 300221633 + ... + 300327528.

It is an arithmetic number, because the mean of its divisors is an integer number (1390071126976).

Almost surely, 2^{31797876976628} is an apocalyptic number.

It is an amenable number.

31797876976628 is an abundant number, since it is smaller than the sum of its proper divisors (34925537118220).

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

31797876976628 is a wasteful number, since it uses less digits than its factorization.

31797876976628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600549264 (or 600549262 counting only the distinct ones).

The product of its digits is 16131032064, while the sum is 86.

The spelling of 31797876976628 in words is "thirty-one trillion, seven hundred ninety-seven billion, eight hundred seventy-six million, nine hundred seventy-six thousand, six hundred twenty-eight".