18111889709676 has 48 divisors (see below), whose sum is σ = 53664858401280. Its totient is φ = 5174825631120.

The previous prime is 18111889709623. The next prime is 18111889709681. The reversal of 18111889709676 is 67690798811181.

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, 11978762280 + ... + 11978763791.

It is an arithmetic number, because the mean of its divisors is an integer number (1118017883360).

Almost surely, 2^{18111889709676} is an apocalyptic number.

It is an amenable number.

18111889709676 is an abundant number, since it is smaller than the sum of its proper divisors (35552968691604).

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

18111889709676 is a wasteful number, since it uses less digits than its factorization.

18111889709676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23957526091 (or 23957526083 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 72.

The spelling of 18111889709676 in words is "eighteen trillion, one hundred eleven billion, eight hundred eighty-nine million, seven hundred nine thousand, six hundred seventy-six".