72917628384323 has 2 divisors, whose sum is σ = 72917628384324. Its totient is φ = 72917628384322.

The previous prime is 72917628384229. The next prime is 72917628384329. The reversal of 72917628384323 is 32348382671927.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72917628384323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72917628384323.

It is not a weakly prime, because it can be changed into another prime (72917628384329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36458814192161 + 36458814192162.

It is an arithmetic number, because the mean of its divisors is an integer number (36458814192162).

Almost surely, 2^{72917628384323} is an apocalyptic number.

72917628384323 is a deficient number, since it is larger than the sum of its proper divisors (1).

72917628384323 is an equidigital number, since it uses as much as digits as its factorization.

72917628384323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146313216, while the sum is 65.

The spelling of 72917628384323 in words is "seventy-two trillion, nine hundred seventeen billion, six hundred twenty-eight million, three hundred eighty-four thousand, three hundred twenty-three".