72403988192 has 48 divisors (see below), whose sum is σ = 147494390400. Its totient is φ = 34945666560.

The previous prime is 72403988147. The next prime is 72403988207. The reversal of 72403988192 is 29188930427.

It is a super-2 number, since 2×72403988192² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7178609 + ... + 7188687.

It is an arithmetic number, because the mean of its divisors is an integer number (3072799800).

Almost surely, 2^72403988192 is an apocalyptic number.

It is an amenable number.

72403988192 is an abundant number, since it is smaller than the sum of its proper divisors (75090402208).

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

72403988192 is a wasteful number, since it uses less digits than its factorization.

72403988192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17859 (or 17851 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 72403988192 in words is "seventy-two billion, four hundred three million, nine hundred eighty-eight thousand, one hundred ninety-two".