79099590079 has 4 divisors (see below), whose sum is σ = 79103512840. Its totient is φ = 79095667320.

The previous prime is 79099590019. The next prime is 79099590091. The reversal of 79099590079 is 97009599097.

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

It is a cyclic number.

It is not a de Polignac number, because 79099590079 - 2⁷ = 79099589951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79099590079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79099590019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1930977 + ... + 1971514.

It is an arithmetic number, because the mean of its divisors is an integer number (19775878210).

Almost surely, 2^79099590079 is an apocalyptic number.

79099590079 is a deficient number, since it is larger than the sum of its proper divisors (3922761).

79099590079 is a wasteful number, since it uses less digits than its factorization.

79099590079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922760.

The product of its (nonzero) digits is 14467005, while the sum is 64.

The spelling of 79099590079 in words is "seventy-nine billion, ninety-nine million, five hundred ninety thousand, seventy-nine".