79404397159 has 2 divisors, whose sum is σ = 79404397160. Its totient is φ = 79404397158.

The previous prime is 79404397151. The next prime is 79404397223. The reversal of 79404397159 is 95179340497.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79404397159 - 2³ = 79404397151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79404397151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39702198579 + 39702198580.

It is an arithmetic number, because the mean of its divisors is an integer number (39702198580).

Almost surely, 2^79404397159 is an apocalyptic number.

79404397159 is a deficient number, since it is larger than the sum of its proper divisors (1).

79404397159 is an equidigital number, since it uses as much as digits as its factorization.

79404397159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 79404397159 in words is "seventy-nine billion, four hundred four million, three hundred ninety-seven thousand, one hundred fifty-nine".