31040473634304 has 160 divisors (see below), whose sum is σ = 83751963102720. Its totient is φ = 10214455959552.

The previous prime is 31040473634273. The next prime is 31040473634309. The reversal of 31040473634304 is 40343637404013.

It is a super-2 number, since 2×31040473634304² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040473634309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1265241622 + ... + 1265266154.

It is an arithmetic number, because the mean of its divisors is an integer number (523449769392).

Almost surely, 2^{31040473634304} 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 31040473634304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41875981551360).

31040473634304 is an abundant number, since it is smaller than the sum of its proper divisors (52711489468416).

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

31040473634304 is a wasteful number, since it uses less digits than its factorization.

31040473634304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35060 (or 35044 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 42.

The spelling of 31040473634304 in words is "thirty-one trillion, forty billion, four hundred seventy-three million, six hundred thirty-four thousand, three hundred four".