79270136105 has 4 divisors (see below), whose sum is σ = 95124163332. Its totient is φ = 63416108880.

The previous prime is 79270136089. The next prime is 79270136117. The reversal of 79270136105 is 50163107297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25332860569 + 53937275536 = 159163^2 + 232244^2 .

It is not a de Polignac number, because 79270136105 - 2⁴ = 79270136089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7927013606 + ... + 7927013615.

It is an arithmetic number, because the mean of its divisors is an integer number (23781040833).

Almost surely, 2^79270136105 is an apocalyptic number.

It is an amenable number.

79270136105 is a deficient number, since it is larger than the sum of its proper divisors (15854027227).

79270136105 is a wasteful number, since it uses less digits than its factorization.

79270136105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854027226.

The product of its (nonzero) digits is 79380, while the sum is 41.

The spelling of 79270136105 in words is "seventy-nine billion, two hundred seventy million, one hundred thirty-six thousand, one hundred five".