31639898890092 has 54 divisors (see below), whose sum is σ = 73953726659652. Its totient is φ = 10528479114144.

The previous prime is 31639898890081. The next prime is 31639898890109. The reversal of 31639898890092 is 29009889893613.

It is a junction number, because it is equal to n+sod(n) for n = 31639898889996 and 31639898890023.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16036440418 + ... + 16036442390.

Almost surely, 2^{31639898890092} is an apocalyptic number.

It is an amenable number.

31639898890092 is an abundant number, since it is smaller than the sum of its proper divisors (42313827769560).

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

31639898890092 is an frugal number, since it uses more digits than its factorization.

31639898890092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 362797056, while the sum is 75.

The spelling of 31639898890092 in words is "thirty-one trillion, six hundred thirty-nine billion, eight hundred ninety-eight million, eight hundred ninety thousand, ninety-two".