31217410768 has 80 divisors (see below), whose sum is σ = 62128594944. Its totient is φ = 15191003520.

The previous prime is 31217410751. The next prime is 31217410787. The reversal of 31217410768 is 86701471213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31217410768.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63579003 + ... + 63579493.

Almost surely, 2^31217410768 is an apocalyptic number.

It is an amenable number.

31217410768 is a deficient number, since it is larger than the sum of its proper divisors (30911184176).

31217410768 is a wasteful number, since it uses less digits than its factorization.

31217410768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 31217410768 in words is "thirty-one billion, two hundred seventeen million, four hundred ten thousand, seven hundred sixty-eight".