18107728088 has 16 divisors (see below), whose sum is σ = 33957036000. Its totient is φ = 9052518496.

The previous prime is 18107728057. The next prime is 18107728097. The reversal of 18107728088 is 88082770181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109808 + ... + 219711.

It is an arithmetic number, because the mean of its divisors is an integer number (2122314750).

Almost surely, 2^18107728088 is an apocalyptic number.

It is an amenable number.

18107728088 is a deficient number, since it is larger than the sum of its proper divisors (15849307912).

18107728088 is a wasteful number, since it uses less digits than its factorization.

18107728088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336394 (or 336390 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 50.

The spelling of 18107728088 in words is "eighteen billion, one hundred seven million, seven hundred twenty-eight thousand, eighty-eight".