72217125198 has 24 divisors (see below), whose sum is σ = 156475909200. Its totient is φ = 24071533344.

The previous prime is 72217125193. The next prime is 72217125203. The reversal of 72217125198 is 89152171227.

It is an interprime number because it is at equal distance from previous prime (72217125193) and next prime (72217125203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72217125191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670023 + ... + 770301.

It is an arithmetic number, because the mean of its divisors is an integer number (6519829550).

Almost surely, 2^72217125198 is an apocalyptic number.

72217125198 is an abundant number, since it is smaller than the sum of its proper divisors (84258784002).

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

72217125198 is a wasteful number, since it uses less digits than its factorization.

72217125198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140296 (or 140293 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The spelling of 72217125198 in words is "seventy-two billion, two hundred seventeen million, one hundred twenty-five thousand, one hundred ninety-eight".