52631868720 has 160 divisors (see below), whose sum is σ = 166505842944. Its totient is φ = 13749120000.

The previous prime is 52631868713. The next prime is 52631868733. The reversal of 52631868720 is 2786813625.

It is a super-2 number, since 2×52631868720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 52631868720.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3667479 + ... + 3681801.

Almost surely, 2^52631868720 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 52631868720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83252921472).

52631868720 is an abundant number, since it is smaller than the sum of its proper divisors (113873974224).

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

52631868720 is a wasteful number, since it uses less digits than its factorization.

52631868720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14651 (or 14645 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 52631868720 in words is "fifty-two billion, six hundred thirty-one million, eight hundred sixty-eight thousand, seven hundred twenty".