18882020200 has 72 divisors (see below), whose sum is σ = 45892668150. Its totient is φ = 7224384640.

The previous prime is 18882020189. The next prime is 18882020243. The reversal of 18882020200 is 202028881.

It can be written as a sum of positive squares in 3 ways, for example, as 7502677924 + 11379342276 = 86618^2 + 106674^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16566 + ... + 195034.

Almost surely, 2^18882020200 is an apocalyptic number.

18882020200 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 18882020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22946334075).

18882020200 is an abundant number, since it is smaller than the sum of its proper divisors (27010647950).

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

18882020200 is a wasteful number, since it uses less digits than its factorization.

18882020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178531 (or 178499 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The spelling of 18882020200 in words is "eighteen billion, eight hundred eighty-two million, twenty thousand, two hundred".