78907814079 has 4 divisors (see below), whose sum is σ = 105210418776. Its totient is φ = 52605209384.

The previous prime is 78907814059. The next prime is 78907814081. The reversal of 78907814079 is 97041870987.

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 78907814079 - 2⁸ = 78907813823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78907814009) 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, 13151302344 + ... + 13151302349.

It is an arithmetic number, because the mean of its divisors is an integer number (26302604694).

Almost surely, 2^78907814079 is an apocalyptic number.

78907814079 is a deficient number, since it is larger than the sum of its proper divisors (26302604697).

78907814079 is a wasteful number, since it uses less digits than its factorization.

78907814079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26302604696.

The product of its (nonzero) digits is 7112448, while the sum is 60.

The spelling of 78907814079 in words is "seventy-eight billion, nine hundred seven million, eight hundred fourteen thousand, seventy-nine".