18231076688 has 160 divisors (see below), whose sum is σ = 42477281280. Its totient is φ = 7487424000.

The previous prime is 18231076663. The next prime is 18231076723. The reversal of 18231076688 is 88667013281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7358906 + ... + 7361382.

It is an arithmetic number, because the mean of its divisors is an integer number (265483008).

Almost surely, 2^18231076688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18231076688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21238640640).

18231076688 is an abundant number, since it is smaller than the sum of its proper divisors (24246204592).

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

18231076688 is a wasteful number, since it uses less digits than its factorization.

18231076688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 18231076688 in words is "eighteen billion, two hundred thirty-one million, seventy-six thousand, six hundred eighty-eight".