18230900688 has 1200 divisors, whose sum is σ = 75913998336. Its totient is φ = 4092042240.

The previous prime is 18230900647. The next prime is 18230900693. The reversal of 18230900688 is 88600903281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 387891481 + ... + 387891527.

Almost surely, 2^18230900688 is an apocalyptic number.

18230900688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18230900688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37956999168).

18230900688 is an abundant number, since it is smaller than the sum of its proper divisors (57683097648).

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

18230900688 is a wasteful number, since it uses less digits than its factorization.

18230900688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 18230900688 in words is "eighteen billion, two hundred thirty million, nine hundred thousand, six hundred eighty-eight".