31348373904 has 120 divisors (see below), whose sum is σ = 92444976000. Its totient is φ = 9889240320.

The previous prime is 31348373863. The next prime is 31348373921. The reversal of 31348373904 is 40937384313.

It is a happy number.

31348373904 is a `hidden beast` number, since 3 + 13 + 483 + 73 + 90 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31348373904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2897497 + ... + 2908295.

It is an arithmetic number, because the mean of its divisors is an integer number (770374800).

Almost surely, 2^31348373904 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 31348373904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46222488000).

31348373904 is an abundant number, since it is smaller than the sum of its proper divisors (61096602096).

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

31348373904 is a wasteful number, since it uses less digits than its factorization.

31348373904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893 (or 11884 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 31348373904 in words is "thirty-one billion, three hundred forty-eight million, three hundred seventy-three thousand, nine hundred four".