79869191826 has 16 divisors (see below), whose sum is σ = 159872971104. Its totient is φ = 26600632704.

The previous prime is 79869191813. The next prime is 79869191849. The reversal of 79869191826 is 62819196897.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5600095 + ... + 5614338.

It is an arithmetic number, because the mean of its divisors is an integer number (9992060694).

Almost surely, 2^79869191826 is an apocalyptic number.

79869191826 is an abundant number, since it is smaller than the sum of its proper divisors (80003779278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79869191826 is a wasteful number, since it uses less digits than its factorization.

79869191826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215625.

The product of its digits is 23514624, while the sum is 66.

The spelling of 79869191826 in words is "seventy-nine billion, eight hundred sixty-nine million, one hundred ninety-one thousand, eight hundred twenty-six".