72381674484 has 144 divisors (see below), whose sum is σ = 212280606720. Its totient is φ = 20366821440.

The previous prime is 72381674479. The next prime is 72381674527. The reversal of 72381674484 is 48447618327.

72381674484 is a `hidden beast` number, since 7 + 2 + 38 + 167 + 448 + 4 = 666.

It is a super-2 number, since 2×72381674484² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72381674484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22882287 + ... + 22885449.

It is an arithmetic number, because the mean of its divisors is an integer number (1474170880).

Almost surely, 2^72381674484 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 72381674484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106140303360).

72381674484 is an abundant number, since it is smaller than the sum of its proper divisors (139898932236).

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

72381674484 is a wasteful number, since it uses less digits than its factorization.

72381674484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 4525 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 72381674484 in words is "seventy-two billion, three hundred eighty-one million, six hundred seventy-four thousand, four hundred eighty-four".