18120768680 has 64 divisors (see below), whose sum is σ = 46882247040. Its totient is φ = 6174703872.

The previous prime is 18120768671. The next prime is 18120768691. The reversal of 18120768680 is 8686702181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152879 + ... + 244158.

It is an arithmetic number, because the mean of its divisors is an integer number (732535110).

Almost surely, 2^18120768680 is an apocalyptic number.

18120768680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18120768680 is an abundant number, since it is smaller than the sum of its proper divisors (28761478360).

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

18120768680 is a wasteful number, since it uses less digits than its factorization.

18120768680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397218 (or 397214 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 18120768680 in words is "eighteen billion, one hundred twenty million, seven hundred sixty-eight thousand, six hundred eighty".