79068691139 has 16 divisors (see below), whose sum is σ = 82961413920. Its totient is φ = 75257736960.

The previous prime is 79068691133. The next prime is 79068691187. The reversal of 79068691139 is 93119686097.

It is a cyclic number.

It is not a de Polignac number, because 79068691139 - 2⁴ = 79068691123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79068691133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073999 + ... + 1145255.

It is an arithmetic number, because the mean of its divisors is an integer number (5185088370).

Almost surely, 2^79068691139 is an apocalyptic number.

79068691139 is a deficient number, since it is larger than the sum of its proper divisors (3892722781).

79068691139 is a wasteful number, since it uses less digits than its factorization.

79068691139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71830.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 79068691139 in words is "seventy-nine billion, sixty-eight million, six hundred ninety-one thousand, one hundred thirty-nine".