72637005191 has 2 divisors, whose sum is σ = 72637005192. Its totient is φ = 72637005190.

The previous prime is 72637005163. The next prime is 72637005247. The reversal of 72637005191 is 19150073627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72637005191 - 2⁶ = 72637005127 is a prime.

It is a super-2 number, since 2×72637005191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72637005131) 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 as a sum of consecutive naturals, namely, 36318502595 + 36318502596.

It is an arithmetic number, because the mean of its divisors is an integer number (36318502596).

Almost surely, 2^72637005191 is an apocalyptic number.

72637005191 is a deficient number, since it is larger than the sum of its proper divisors (1).

72637005191 is an equidigital number, since it uses as much as digits as its factorization.

72637005191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The spelling of 72637005191 in words is "seventy-two billion, six hundred thirty-seven million, five thousand, one hundred ninety-one".