18807310079 has 4 divisors (see below), whose sum is σ = 18807944280. Its totient is φ = 18806675880.

The previous prime is 18807310073. The next prime is 18807310087. The reversal of 18807310079 is 97001370881.

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 18807310079 - 2²⁸ = 18538874623 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 (18807310073) 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, 270317 + ... + 332694.

It is an arithmetic number, because the mean of its divisors is an integer number (4701986070).

Almost surely, 2^18807310079 is an apocalyptic number.

18807310079 is a deficient number, since it is larger than the sum of its proper divisors (634201).

18807310079 is an equidigital number, since it uses as much as digits as its factorization.

18807310079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634200.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 18807310079 in words is "eighteen billion, eight hundred seven million, three hundred ten thousand, seventy-nine".