72844914971 has 2 divisors, whose sum is σ = 72844914972. Its totient is φ = 72844914970.

The previous prime is 72844914959. The next prime is 72844915007. The reversal of 72844914971 is 17941944827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72844914971 - 2²⁶ = 72777806107 is a prime.

It is not a weakly prime, because it can be changed into another prime (72844914911) 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, 36422457485 + 36422457486.

It is an arithmetic number, because the mean of its divisors is an integer number (36422457486).

Almost surely, 2^72844914971 is an apocalyptic number.

72844914971 is a deficient number, since it is larger than the sum of its proper divisors (1).

72844914971 is an equidigital number, since it uses as much as digits as its factorization.

72844914971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The spelling of 72844914971 in words is "seventy-two billion, eight hundred forty-four million, nine hundred fourteen thousand, nine hundred seventy-one".