79296307217 has 2 divisors, whose sum is σ = 79296307218. Its totient is φ = 79296307216.

The previous prime is 79296307171. The next prime is 79296307219. The reversal of 79296307217 is 71270369297.

It is a Cunningham number, because it is equal to 281596²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79296307216 + 1 = 281596^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 79296307217 - 2⁸ = 79296306961 is a prime.

Together with 79296307219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79296307219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39648153608 + 39648153609.

It is an arithmetic number, because the mean of its divisors is an integer number (39648153609).

Almost surely, 2^79296307217 is an apocalyptic number.

It is an amenable number.

79296307217 is a deficient number, since it is larger than the sum of its proper divisors (1).

79296307217 is an equidigital number, since it uses as much as digits as its factorization.

79296307217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 79296307217 in words is "seventy-nine billion, two hundred ninety-six million, three hundred seven thousand, two hundred seventeen".