31489670996 has 96 divisors (see below), whose sum is σ = 70667251200. Its totient is φ = 11964395520.

The previous prime is 31489670987. The next prime is 31489671007. The reversal of 31489670996 is 69907698413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538145 + ... + 593783.

It is an arithmetic number, because the mean of its divisors is an integer number (736117200).

Almost surely, 2^31489670996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31489670996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35333625600).

31489670996 is an abundant number, since it is smaller than the sum of its proper divisors (39177580204).

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

31489670996 is a wasteful number, since it uses less digits than its factorization.

31489670996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55737 (or 55735 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 31489670996 in words is "thirty-one billion, four hundred eighty-nine million, six hundred seventy thousand, nine hundred ninety-six".