18261111088 has 40 divisors (see below), whose sum is σ = 38616653376. Its totient is φ = 8296353600.

The previous prime is 18261111067. The next prime is 18261111103. The reversal of 18261111088 is 88011116281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341703 + ... + 391513.

Almost surely, 2^18261111088 is an apocalyptic number.

It is an amenable number.

18261111088 is an abundant number, since it is smaller than the sum of its proper divisors (20355542288).

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

18261111088 is a wasteful number, since it uses less digits than its factorization.

18261111088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51913 (or 51907 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 37.

The spelling of 18261111088 in words is "eighteen billion, two hundred sixty-one million, one hundred eleven thousand, eighty-eight".