31407433616 has 40 divisors (see below), whose sum is σ = 68382081600. Its totient is φ = 13865486976.

The previous prime is 31407433601. The next prime is 31407433633. The reversal of 31407433616 is 61633470413.

It is a self number, because there is not a number n which added to its sum of digits gives 31407433616.

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, 3277766 + ... + 3287333.

It is an arithmetic number, because the mean of its divisors is an integer number (1709552040).

Almost surely, 2^31407433616 is an apocalyptic number.

It is an amenable number.

31407433616 is an abundant number, since it is smaller than the sum of its proper divisors (36974647984).

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

31407433616 is a wasteful number, since it uses less digits than its factorization.

31407433616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565143 (or 6565137 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 31407433616 in words is "thirty-one billion, four hundred seven million, four hundred thirty-three thousand, six hundred sixteen".