18026944844 has 12 divisors (see below), whose sum is σ = 31548131664. Its totient is φ = 9013192944.

The previous prime is 18026944781. The next prime is 18026944867. The reversal of 18026944844 is 44844962081.

It is a junction number, because it is equal to n+sod(n) for n = 18026944792 and 18026944801.

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, 157394 + ... + 246630.

It is an arithmetic number, because the mean of its divisors is an integer number (2629010972).

Almost surely, 2^18026944844 is an apocalyptic number.

It is an amenable number.

18026944844 is a deficient number, since it is larger than the sum of its proper divisors (13521186820).

18026944844 is a wasteful number, since it uses less digits than its factorization.

18026944844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139744 (or 139742 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 18026944844 in words is "eighteen billion, twenty-six million, nine hundred forty-four thousand, eight hundred forty-four".