72324107473 has 2 divisors, whose sum is σ = 72324107474. Its totient is φ = 72324107472.

The previous prime is 72324107399. The next prime is 72324107477. The reversal of 72324107473 is 37470142327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52632159889 + 19691947584 = 229417^2 + 140328^2 .

It is a cyclic number.

It is not a de Polignac number, because 72324107473 - 2²⁹ = 71787236561 is a prime.

It is not a weakly prime, because it can be changed into another prime (72324107477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36162053736 + 36162053737.

It is an arithmetic number, because the mean of its divisors is an integer number (36162053737).

Almost surely, 2^72324107473 is an apocalyptic number.

It is an amenable number.

72324107473 is a deficient number, since it is larger than the sum of its proper divisors (1).

72324107473 is an equidigital number, since it uses as much as digits as its factorization.

72324107473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 40.

The spelling of 72324107473 in words is "seventy-two billion, three hundred twenty-four million, one hundred seven thousand, four hundred seventy-three".