18011734488 has 96 divisors (see below), whose sum is σ = 53241786000. Its totient is φ = 5455507200.

The previous prime is 18011734459. The next prime is 18011734519. The reversal of 18011734488 is 88443711081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2261938 + ... + 2269886.

Almost surely, 2^18011734488 is an apocalyptic number.

18011734488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18011734488 is an abundant number, since it is smaller than the sum of its proper divisors (35230051512).

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

18011734488 is a wasteful number, since it uses less digits than its factorization.

18011734488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833 (or 10826 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 18011734488 in words is "eighteen billion, eleven million, seven hundred thirty-four thousand, four hundred eighty-eight".