72272503943639 has 2 divisors, whose sum is σ = 72272503943640. Its totient is φ = 72272503943638.

The previous prime is 72272503943567. The next prime is 72272503943659. The reversal of 72272503943639 is 93634930527227.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72272503943639 - 2²⁰ = 72272502895063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72272503943659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36136251971819 + 36136251971820.

It is an arithmetic number, because the mean of its divisors is an integer number (36136251971820).

Almost surely, 2^{72272503943639} is an apocalyptic number.

72272503943639 is a deficient number, since it is larger than the sum of its proper divisors (1).

72272503943639 is an equidigital number, since it uses as much as digits as its factorization.

72272503943639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 62.

The spelling of 72272503943639 in words is "seventy-two trillion, two hundred seventy-two billion, five hundred three million, nine hundred forty-three thousand, six hundred thirty-nine".