31630054038 has 64 divisors (see below), whose sum is σ = 73741155840. Its totient is φ = 8938252800.

The previous prime is 31630054019. The next prime is 31630054061. The reversal of 31630054038 is 83045003613.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 7018 + ... + 251613.

It is an arithmetic number, because the mean of its divisors is an integer number (1152205560).

Almost surely, 2^31630054038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31630054038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36870577920).

31630054038 is an abundant number, since it is smaller than the sum of its proper divisors (42111101802).

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

31630054038 is a wasteful number, since it uses less digits than its factorization.

31630054038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258773.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 31630054038 in words is "thirty-one billion, six hundred thirty million, fifty-four thousand, thirty-eight".