18579456089 has 4 divisors (see below), whose sum is σ = 18579805824. Its totient is φ = 18579106356.

The previous prime is 18579456061. The next prime is 18579456167. The reversal of 18579456089 is 98065497581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18579456089 - 2²⁴ = 18562678873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18579459089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76877 + ... + 207530.

It is an arithmetic number, because the mean of its divisors is an integer number (4644951456).

Almost surely, 2^18579456089 is an apocalyptic number.

It is an amenable number.

18579456089 is a deficient number, since it is larger than the sum of its proper divisors (349735).

18579456089 is an equidigital number, since it uses as much as digits as its factorization.

18579456089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349734.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 18579456089 in words is "eighteen billion, five hundred seventy-nine million, four hundred fifty-six thousand, eighty-nine".