79108670117 has 2 divisors, whose sum is σ = 79108670118. Its totient is φ = 79108670116.

The previous prime is 79108670107. The next prime is 79108670141. The reversal of 79108670117 is 71107680197.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60729716356 + 18378953761 = 246434^2 + 135569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79108670117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79108670107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39554335058 + 39554335059.

It is an arithmetic number, because the mean of its divisors is an integer number (39554335059).

Almost surely, 2^79108670117 is an apocalyptic number.

It is an amenable number.

79108670117 is a deficient number, since it is larger than the sum of its proper divisors (1).

79108670117 is an equidigital number, since it uses as much as digits as its factorization.

79108670117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 47.

The spelling of 79108670117 in words is "seventy-nine billion, one hundred eight million, six hundred seventy thousand, one hundred seventeen".