31394315384 has 8 divisors (see below), whose sum is σ = 58864341360. Its totient is φ = 15697157688.

The previous prime is 31394315341. The next prime is 31394315399. The reversal of 31394315384 is 48351349313.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962144704 + ... + 1962144719.

It is an arithmetic number, because the mean of its divisors is an integer number (7358042670).

Almost surely, 2^31394315384 is an apocalyptic number.

It is an amenable number.

31394315384 is a deficient number, since it is larger than the sum of its proper divisors (27470025976).

31394315384 is a wasteful number, since it uses less digits than its factorization.

31394315384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924289429 (or 3924289425 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The spelling of 31394315384 in words is "thirty-one billion, three hundred ninety-four million, three hundred fifteen thousand, three hundred eighty-four".