18922858800 has 360 divisors, whose sum is σ = 63898120080. Its totient is φ = 4785408000.

The previous prime is 18922858789. The next prime is 18922858849. The reversal of 18922858800 is 885822981.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 70345066 + ... + 70345334.

It is an arithmetic number, because the mean of its divisors is an integer number (177494778).

Almost surely, 2^18922858800 is an apocalyptic number.

18922858800 is a gapful number since it is divisible by the number (10) 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 18922858800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31949060040).

18922858800 is an abundant number, since it is smaller than the sum of its proper divisors (44975261280).

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

18922858800 is a wasteful number, since it uses less digits than its factorization.

18922858800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 51.

The spelling of 18922858800 in words is "eighteen billion, nine hundred twenty-two million, eight hundred fifty-eight thousand, eight hundred".