31744974519972 has 48 divisors (see below), whose sum is σ = 94059183765120. Its totient is φ = 9069992719776.

The previous prime is 31744974519949. The next prime is 31744974520019. The reversal of 31744974519972 is 27991547944713.

It is a happy number.

31744974519972 is a `hidden beast` number, since 3 + 1 + 7 + 4 + 497 + 45 + 1 + 9 + 97 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31744974519972.

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, 20995352763 + ... + 20995354274.

It is an arithmetic number, because the mean of its divisors is an integer number (1959566328440).

Almost surely, 2^{31744974519972} is an apocalyptic number.

It is an amenable number.

31744974519972 is an abundant number, since it is smaller than the sum of its proper divisors (62314209245148).

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

31744974519972 is a wasteful number, since it uses less digits than its factorization.

31744974519972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41990707057 (or 41990707049 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 72.

The spelling of 31744974519972 in words is "thirty-one trillion, seven hundred forty-four billion, nine hundred seventy-four million, five hundred nineteen thousand, nine hundred seventy-two".