18514030979 has 4 divisors (see below), whose sum is σ = 18537556584. Its totient is φ = 18490505376.

The previous prime is 18514030973. The next prime is 18514031051. The reversal of 18514030979 is 97903041581.

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 18514030979 - 2⁴ = 18514030963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18514030973) 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, 11761622 + ... + 11763195.

It is an arithmetic number, because the mean of its divisors is an integer number (4634389146).

Almost surely, 2^18514030979 is an apocalyptic number.

18514030979 is a deficient number, since it is larger than the sum of its proper divisors (23525605).

18514030979 is an equidigital number, since it uses as much as digits as its factorization.

18514030979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23525604.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 18514030979 in words is "eighteen billion, five hundred fourteen million, thirty thousand, nine hundred seventy-nine".