80129594879 has 4 divisors (see below), whose sum is σ = 80209966584. Its totient is φ = 80049223176.

The previous prime is 80129594869. The next prime is 80129594887. The reversal of 80129594879 is 97849592108.

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 80129594879 - 2³⁶ = 11410118143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80129594869) 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 3 ways as a sum of consecutive naturals, for example, 40184357 + ... + 40186350.

It is an arithmetic number, because the mean of its divisors is an integer number (20052491646).

Almost surely, 2^80129594879 is an apocalyptic number.

80129594879 is a deficient number, since it is larger than the sum of its proper divisors (80371705).

80129594879 is an equidigital number, since it uses as much as digits as its factorization.

80129594879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80371704.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 80129594879 in words is "eighty billion, one hundred twenty-nine million, five hundred ninety-four thousand, eight hundred seventy-nine".