72733318460 has 24 divisors (see below), whose sum is σ = 166625420976. Its totient is φ = 26448479360.

The previous prime is 72733318447. The next prime is 72733318481. The reversal of 72733318460 is 6481333727.

It is a super-2 number, since 2×72733318460² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165302777 + ... + 165303216.

It is an arithmetic number, because the mean of its divisors is an integer number (6942725874).

Almost surely, 2^72733318460 is an apocalyptic number.

It is an amenable number.

72733318460 is an abundant number, since it is smaller than the sum of its proper divisors (93892102516).

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

72733318460 is a wasteful number, since it uses less digits than its factorization.

72733318460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330606013 (or 330606011 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

It can be divided in two parts, 72733 and 318460, that added together give a palindrome (391193).

The spelling of 72733318460 in words is "seventy-two billion, seven hundred thirty-three million, three hundred eighteen thousand, four hundred sixty".