18110388838 has 16 divisors (see below), whose sum is σ = 27295994880. Its totient is φ = 9011749896.

The previous prime is 18110388827. The next prime is 18110388869. The reversal of 18110388838 is 83888301181.

It is a junction number, because it is equal to n+sod(n) for n = 18110388791 and 18110388800.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2618581 + ... + 2625487.

It is an arithmetic number, because the mean of its divisors is an integer number (1705999680).

Almost surely, 2^18110388838 is an apocalyptic number.

18110388838 is a deficient number, since it is larger than the sum of its proper divisors (9185606042).

18110388838 is a wasteful number, since it uses less digits than its factorization.

18110388838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13011.

The product of its (nonzero) digits is 294912, while the sum is 49.

The spelling of 18110388838 in words is "eighteen billion, one hundred ten million, three hundred eighty-eight thousand, eight hundred thirty-eight".