18080976788 has 12 divisors (see below), whose sum is σ = 36161953632. Its totient is φ = 7748990040.

The previous prime is 18080976769. The next prime is 18080976799. The reversal of 18080976788 is 88767908081.

18080976788 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 18080976788.

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 3 ways as a sum of consecutive naturals, for example, 322874558 + ... + 322874613.

It is an arithmetic number, because the mean of its divisors is an integer number (3013496136).

Almost surely, 2^18080976788 is an apocalyptic number.

It is an amenable number.

18080976788 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.

18080976788 is a wasteful number, since it uses less digits than its factorization.

18080976788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645749182 (or 645749180 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 62.

The spelling of 18080976788 in words is "eighteen billion, eighty million, nine hundred seventy-six thousand, seven hundred eighty-eight".