31274645247056 has 40 divisors (see below), whose sum is σ = 60639639677760. Its totient is φ = 15625709961984.

The previous prime is 31274645247037. The next prime is 31274645247067. The reversal of 31274645247056 is 65074254647213.

It is a junction number, because it is equal to n+sod(n) for n = 31274645246992 and 31274645247010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128460515 + ... + 128703741.

It is an arithmetic number, because the mean of its divisors is an integer number (1515990991944).

Almost surely, 2^{31274645247056} is an apocalyptic number.

It is an amenable number.

31274645247056 is a deficient number, since it is larger than the sum of its proper divisors (29364994430704).

31274645247056 is a wasteful number, since it uses less digits than its factorization.

31274645247056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249171 (or 249165 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 56.

The spelling of 31274645247056 in words is "thirty-one trillion, two hundred seventy-four billion, six hundred forty-five million, two hundred forty-seven thousand, fifty-six".