79600118598821 has 2 divisors, whose sum is σ = 79600118598822. Its totient is φ = 79600118598820.

The previous prime is 79600118598797. The next prime is 79600118598823. The reversal of 79600118598821 is 12889581100697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72307148296321 + 7292970302500 = 8503361^2 + 2700550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79600118598821 is a prime.

Together with 79600118598823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79600118598823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39800059299410 + 39800059299411.

It is an arithmetic number, because the mean of its divisors is an integer number (39800059299411).

Almost surely, 2^{79600118598821} is an apocalyptic number.

It is an amenable number.

79600118598821 is a deficient number, since it is larger than the sum of its proper divisors (1).

79600118598821 is an equidigital number, since it uses as much as digits as its factorization.

79600118598821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 65.

The spelling of 79600118598821 in words is "seventy-nine trillion, six hundred billion, one hundred eighteen million, five hundred ninety-eight thousand, eight hundred twenty-one".