72224979875 has 32 divisors (see below), whose sum is σ = 92947720320. Its totient is φ = 55996800000.

The previous prime is 72224979823. The next prime is 72224979877. The reversal of 72224979875 is 57897942227.

It is not a de Polignac number, because 72224979875 - 2¹⁸ = 72224717731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72224979877) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 727211 + ... + 820539.

It is an arithmetic number, because the mean of its divisors is an integer number (2904616260).

Almost surely, 2^72224979875 is an apocalyptic number.

72224979875 is a deficient number, since it is larger than the sum of its proper divisors (20722740445).

72224979875 is a wasteful number, since it uses less digits than its factorization.

72224979875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93536 (or 93526 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 62.

The spelling of 72224979875 in words is "seventy-two billion, two hundred twenty-four million, nine hundred seventy-nine thousand, eight hundred seventy-five".