18807648216 has 256 divisors, whose sum is σ = 58525286400. Its totient is φ = 4914407424.

The previous prime is 18807648203. The next prime is 18807648247. The reversal of 18807648216 is 61284670881.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22416325 + ... + 22417163.

It is an arithmetic number, because the mean of its divisors is an integer number (228614400).

Almost surely, 2^18807648216 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 18807648216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262643200).

18807648216 is an abundant number, since it is smaller than the sum of its proper divisors (39717638184).

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

18807648216 is a wasteful number, since it uses less digits than its factorization.

18807648216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 18807648216 in words is "eighteen billion, eight hundred seven million, six hundred forty-eight thousand, two hundred sixteen".