18080985826 has 8 divisors (see below), whose sum is σ = 27272995920. Its totient is φ = 8989987188.

The previous prime is 18080985821. The next prime is 18080985829. The reversal of 18080985826 is 62858908081.

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

It is not an unprimeable number, because it can be changed into a prime (18080985821) 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 3 ways as a sum of consecutive naturals, for example, 25252416 + ... + 25253131.

It is an arithmetic number, because the mean of its divisors is an integer number (3409124490).

Almost surely, 2^18080985826 is an apocalyptic number.

18080985826 is a deficient number, since it is larger than the sum of its proper divisors (9192010094).

18080985826 is a wasteful number, since it uses less digits than its factorization.

18080985826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50505728.

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 18080985826 in words is "eighteen billion, eighty million, nine hundred eighty-five thousand, eight hundred twenty-six".