72217271519 has 2 divisors, whose sum is σ = 72217271520. Its totient is φ = 72217271518.

The previous prime is 72217271479. The next prime is 72217271561. The reversal of 72217271519 is 91517271227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72217271519 - 2⁸ = 72217271263 is a prime.

It is a super-2 number, since 2×72217271519² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72217271519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72217231519) 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 as a sum of consecutive naturals, namely, 36108635759 + 36108635760.

It is an arithmetic number, because the mean of its divisors is an integer number (36108635760).

Almost surely, 2^72217271519 is an apocalyptic number.

72217271519 is a deficient number, since it is larger than the sum of its proper divisors (1).

72217271519 is an equidigital number, since it uses as much as digits as its factorization.

72217271519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 44.

The spelling of 72217271519 in words is "seventy-two billion, two hundred seventeen million, two hundred seventy-one thousand, five hundred nineteen".