21800889218848 has 48 divisors (see below), whose sum is σ = 44149053594240. Its totient is φ = 10591768210176.

The previous prime is 21800889218813. The next prime is 21800889218917. The reversal of 21800889218848 is 84881298800812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51932211 + ... + 52350322.

It is an arithmetic number, because the mean of its divisors is an integer number (919771949880).

Almost surely, 2^{21800889218848} is an apocalyptic number.

It is an amenable number.

21800889218848 is an abundant number, since it is smaller than the sum of its proper divisors (22348164375392).

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

21800889218848 is a wasteful number, since it uses less digits than its factorization.

21800889218848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104282729 (or 104282721 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 67.

The spelling of 21800889218848 in words is "twenty-one trillion, eight hundred billion, eight hundred eighty-nine million, two hundred eighteen thousand, eight hundred forty-eight".