72618494788 has 48 divisors (see below), whose sum is σ = 154156746240. Its totient is φ = 29219798016.

The previous prime is 72618494749. The next prime is 72618494789. The reversal of 72618494788 is 88749481627.

It is not an unprimeable number, because it can be changed into a prime (72618494789) 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, 8181 + ... + 381187.

It is an arithmetic number, because the mean of its divisors is an integer number (3211598880).

Almost surely, 2^72618494788 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 72618494788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77078373120).

72618494788 is an abundant number, since it is smaller than the sum of its proper divisors (81538251452).

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

72618494788 is a wasteful number, since it uses less digits than its factorization.

72618494788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373444 (or 373442 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 64.

The spelling of 72618494788 in words is "seventy-two billion, six hundred eighteen million, four hundred ninety-four thousand, seven hundred eighty-eight".