79723325089 has 2 divisors, whose sum is σ = 79723325090. Its totient is φ = 79723325088.

The previous prime is 79723325083. The next prime is 79723325147. The reversal of 79723325089 is 98052332797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73391144464 + 6332180625 = 270908^2 + 79575^2 .

It is a cyclic number.

It is not a de Polignac number, because 79723325089 - 2¹¹ = 79723323041 is a prime.

It is not a weakly prime, because it can be changed into another prime (79723325083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39861662544 + 39861662545.

It is an arithmetic number, because the mean of its divisors is an integer number (39861662545).

Almost surely, 2^79723325089 is an apocalyptic number.

It is an amenable number.

79723325089 is a deficient number, since it is larger than the sum of its proper divisors (1).

79723325089 is an equidigital number, since it uses as much as digits as its factorization.

79723325089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 79723325089 in words is "seventy-nine billion, seven hundred twenty-three million, three hundred twenty-five thousand, eighty-nine".