31404583608 has 32 divisors (see below), whose sum is σ = 78516960000. Its totient is φ = 10467461088.

The previous prime is 31404583583. The next prime is 31404583619. The reversal of 31404583608 is 80638540413.

It is a self number, because there is not a number n which added to its sum of digits gives 31404583608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387393 + ... + 461391.

It is an arithmetic number, because the mean of its divisors is an integer number (2453655000).

Almost surely, 2^31404583608 is an apocalyptic number.

It is an amenable number.

31404583608 is an abundant number, since it is smaller than the sum of its proper divisors (47112376392).

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

31404583608 is a wasteful number, since it uses less digits than its factorization.

31404583608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91691 (or 91687 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 31404583608 in words is "thirty-one billion, four hundred four million, five hundred eighty-three thousand, six hundred eight".