18214494089 has 16 divisors (see below), whose sum is σ = 20150636544. Its totient is φ = 16462708240.

The previous prime is 18214494071. The next prime is 18214494091. The reversal of 18214494089 is 98049441281.

It is not a de Polignac number, because 18214494089 - 2²⁸ = 17946058633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18214494689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190712 + ... + 269814.

It is an arithmetic number, because the mean of its divisors is an integer number (1259414784).

Almost surely, 2^18214494089 is an apocalyptic number.

It is an amenable number.

18214494089 is a deficient number, since it is larger than the sum of its proper divisors (1936142455).

18214494089 is an equidigital number, since it uses as much as digits as its factorization.

18214494089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79309 (or 79287 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 18214494089 in words is "eighteen billion, two hundred fourteen million, four hundred ninety-four thousand, eighty-nine".