18108655494 has 8 divisors (see below), whose sum is σ = 36217311000. Its totient is φ = 6036218496.

The previous prime is 18108655463. The next prime is 18108655529. The reversal of 18108655494 is 49455680181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18108655494 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509054619 + ... + 1509054630.

It is an arithmetic number, because the mean of its divisors is an integer number (4527163875).

Almost surely, 2^18108655494 is an apocalyptic number.

18108655494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18108655494 is a wasteful number, since it uses less digits than its factorization.

18108655494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018109254.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 18108655494 in words is "eighteen billion, one hundred eight million, six hundred fifty-five thousand, four hundred ninety-four".