80618879 has 16 divisors (see below), whose sum is σ = 96132096. Its totient is φ = 66748800.

The previous prime is 80618861. The next prime is 80618891. The reversal of 80618879 is 97881608.

It is not a de Polignac number, because 80618879 - 2⁸ = 80618623 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 (80618899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157 + ... + 12750.

It is an arithmetic number, because the mean of its divisors is an integer number (6008256).

Almost surely, 2^80618879 is an apocalyptic number.

80618879 is a deficient number, since it is larger than the sum of its proper divisors (15513217).

80618879 is a wasteful number, since it uses less digits than its factorization.

80618879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 80618879 is about 8978.8016460996. The cubic root of 80618879 is about 431.9951970631.

The spelling of 80618879 in words is "eighty million, six hundred eighteen thousand, eight hundred seventy-nine".