79791414220873 has 2 divisors, whose sum is σ = 79791414220874. Its totient is φ = 79791414220872.

The previous prime is 79791414220781. The next prime is 79791414220877. The reversal of 79791414220873 is 37802241419797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71745863505849 + 8045550715024 = 8470293^2 + 2836468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79791414220873 is a prime.

It is not a weakly prime, because it can be changed into another prime (79791414220877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39895707110436 + 39895707110437.

It is an arithmetic number, because the mean of its divisors is an integer number (39895707110437).

Almost surely, 2^{79791414220873} is an apocalyptic number.

It is an amenable number.

79791414220873 is a deficient number, since it is larger than the sum of its proper divisors (1).

79791414220873 is an equidigital number, since it uses as much as digits as its factorization.

79791414220873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 79791414220873 in words is "seventy-nine trillion, seven hundred ninety-one billion, four hundred fourteen million, two hundred twenty thousand, eight hundred seventy-three".