72733722384 has 20 divisors (see below), whose sum is σ = 187895449616. Its totient is φ = 24244574112.

The previous prime is 72733722367. The next prime is 72733722421. The reversal of 72733722384 is 48322733727.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1515285883 = 72733722384 / (7 + 2 + 7 + 3 + 3 + 7 + 2 + 2 + 3 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757642894 + ... + 757642989.

Almost surely, 2^72733722384 is an apocalyptic number.

It is an amenable number.

72733722384 is an abundant number, since it is smaller than the sum of its proper divisors (115161727232).

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

72733722384 is a wasteful number, since it uses less digits than its factorization.

72733722384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515285894 (or 1515285888 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 48.

The spelling of 72733722384 in words is "seventy-two billion, seven hundred thirty-three million, seven hundred twenty-two thousand, three hundred eighty-four".