31963224648 has 32 divisors (see below), whose sum is σ = 79915116960. Its totient is φ = 10653467520.

The previous prime is 31963224619. The next prime is 31963224691. The reversal of 31963224648 is 84642236913.

It is a junction number, because it is equal to n+sod(n) for n = 31963224597 and 31963224606.

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, 252283 + ... + 357173.

It is an arithmetic number, because the mean of its divisors is an integer number (2497347405).

Almost surely, 2^31963224648 is an apocalyptic number.

It is an amenable number.

31963224648 is an abundant number, since it is smaller than the sum of its proper divisors (47951892312).

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

31963224648 is a wasteful number, since it uses less digits than its factorization.

31963224648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117597 (or 117593 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The spelling of 31963224648 in words is "thirty-one billion, nine hundred sixty-three million, two hundred twenty-four thousand, six hundred forty-eight".