18039055854 has 16 divisors (see below), whose sum is σ = 36083947392. Its totient is φ = 6012046008.

The previous prime is 18039055823. The next prime is 18039055873. The reversal of 18039055854 is 45855093081.

It is a happy number.

It is a super-2 number, since 2×18039055854² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202444 + ... + 277599.

It is an arithmetic number, because the mean of its divisors is an integer number (2255246712).

Almost surely, 2^18039055854 is an apocalyptic number.

18039055854 is an abundant number, since it is smaller than the sum of its proper divisors (18044891538).

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

18039055854 is a wasteful number, since it uses less digits than its factorization.

18039055854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486311.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 18039055854 in words is "eighteen billion, thirty-nine million, fifty-five thousand, eight hundred fifty-four".