72217125243 has 12 divisors (see below), whose sum is σ = 104318519760. Its totient is φ = 48142491216.

The previous prime is 72217125223. The next prime is 72217125263. The reversal of 72217125243 is 34252171227.

It is an interprime number because it is at equal distance from previous prime (72217125223) and next prime (72217125263).

It is not a de Polignac number, because 72217125243 - 2¹⁰ = 72217124219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72217125198 and 72217125207.

It is not an unprimeable number, because it can be changed into a prime (72217125203) 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 11 ways as a sum of consecutive naturals, for example, 27205 + ... + 381017.

It is an arithmetic number, because the mean of its divisors is an integer number (8693209980).

Almost surely, 2^72217125243 is an apocalyptic number.

72217125243 is a deficient number, since it is larger than the sum of its proper divisors (32101394517).

72217125243 is a wasteful number, since it uses less digits than its factorization.

72217125243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376498 (or 376495 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The spelling of 72217125243 in words is "seventy-two billion, two hundred seventeen million, one hundred twenty-five thousand, two hundred forty-three".