31387404457042 has 8 divisors (see below), whose sum is σ = 47093698594800. Its totient is φ = 15689504925444.

The previous prime is 31387404457033. The next prime is 31387404457099. The reversal of 31387404457042 is 24075440478313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098642192 + ... + 2098657147.

It is an arithmetic number, because the mean of its divisors is an integer number (5886712324350).

Almost surely, 2^{31387404457042} is an apocalyptic number.

31387404457042 is a deficient number, since it is larger than the sum of its proper divisors (15706294137758).

31387404457042 is a wasteful number, since it uses less digits than its factorization.

31387404457042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197303080.

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 31387404457042 in words is "thirty-one trillion, three hundred eighty-seven billion, four hundred four million, four hundred fifty-seven thousand, forty-two".