31408318832 has 40 divisors (see below), whose sum is σ = 66430962432. Its totient is φ = 14266788800.

The previous prime is 31408318807. The next prime is 31408318859. The reversal of 31408318832 is 23881380413.

It is a self number, because there is not a number n which added to its sum of digits gives 31408318832.

It is a congruent number.

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, 201707 + ... + 321717.

Almost surely, 2^31408318832 is an apocalyptic number.

It is an amenable number.

31408318832 is an abundant number, since it is smaller than the sum of its proper divisors (35022643600).

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

31408318832 is a wasteful number, since it uses less digits than its factorization.

31408318832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121517 (or 121511 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 31408318832 in words is "thirty-one billion, four hundred eight million, three hundred eighteen thousand, eight hundred thirty-two".