31884027912 has 96 divisors (see below), whose sum is σ = 94235525280. Its totient is φ = 9658471680.

The previous prime is 31884027887. The next prime is 31884027913. The reversal of 31884027912 is 21972048813.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31884027913) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3208183 + ... + 3218105.

It is an arithmetic number, because the mean of its divisors is an integer number (981620055).

Almost surely, 2^31884027912 is an apocalyptic number.

It is an amenable number.

31884027912 is an abundant number, since it is smaller than the sum of its proper divisors (62351497368).

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

31884027912 is a wasteful number, since it uses less digits than its factorization.

31884027912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003 (or 13996 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 31884027912 in words is "thirty-one billion, eight hundred eighty-four million, twenty-seven thousand, nine hundred twelve".