72370670724 has 96 divisors (see below), whose sum is σ = 204857546880. Its totient is φ = 21911990400.

The previous prime is 72370670707. The next prime is 72370670737. The reversal of 72370670724 is 42707607327.

It is a self number, because there is not a number n which added to its sum of digits gives 72370670724.

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, 1415934 + ... + 1466154.

It is an arithmetic number, because the mean of its divisors is an integer number (2133932780).

Almost surely, 2^72370670724 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 72370670724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102428773440).

72370670724 is an abundant number, since it is smaller than the sum of its proper divisors (132486876156).

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

72370670724 is a wasteful number, since it uses less digits than its factorization.

72370670724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51458 (or 51450 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 45.

It can be divided in two parts, 723706 and 70724, that added together give a triangular number (794430 = T₁₂₆₀).

The spelling of 72370670724 in words is "seventy-two billion, three hundred seventy million, six hundred seventy thousand, seven hundred twenty-four".