31886842112 has 36 divisors (see below), whose sum is σ = 66999090480. Its totient is φ = 15104291328.

The previous prime is 31886842111. The next prime is 31886842153. The reversal of 31886842112 is 21124868813.

It is not an unprimeable number, because it can be changed into a prime (31886842111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272978 + ... + 3282705.

Almost surely, 2^31886842112 is an apocalyptic number.

31886842112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31886842112 is an abundant number, since it is smaller than the sum of its proper divisors (35112248368).

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

31886842112 is an equidigital number, since it uses as much as digits as its factorization.

31886842112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555718 (or 6555704 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The spelling of 31886842112 in words is "thirty-one billion, eight hundred eighty-six million, eight hundred forty-two thousand, one hundred twelve".