18679383446 has 4 divisors (see below), whose sum is σ = 28019075172. Its totient is φ = 9339691722.

The previous prime is 18679383433. The next prime is 18679383487. The reversal of 18679383446 is 64438397681.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4669845860 + ... + 4669845863.

It is an arithmetic number, because the mean of its divisors is an integer number (7004768793).

Almost surely, 2^18679383446 is an apocalyptic number.

18679383446 is a deficient number, since it is larger than the sum of its proper divisors (9339691726).

18679383446 is an equidigital number, since it uses as much as digits as its factorization.

18679383446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9339691725.

The product of its digits is 20901888, while the sum is 59.

The spelling of 18679383446 in words is "eighteen billion, six hundred seventy-nine million, three hundred eighty-three thousand, four hundred forty-six".