218842479020 has 96 divisors (see below), whose sum is σ = 519194733120. Its totient is φ = 76752220160.

The previous prime is 218842478989. The next prime is 218842479041. The reversal of 218842479020 is 20974248812.

218842479020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 6062144 + ... + 6098136.

It is an arithmetic number, because the mean of its divisors is an integer number (5408278470).

Almost surely, 2^218842479020 is an apocalyptic number.

218842479020 is a gapful number since it is divisible by the number (20) 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 218842479020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259597366560).

218842479020 is an abundant number, since it is smaller than the sum of its proper divisors (300352254100).

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

218842479020 is a wasteful number, since it uses less digits than its factorization.

218842479020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36995 (or 36993 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 218842479020 in words is "two hundred eighteen billion, eight hundred forty-two million, four hundred seventy-nine thousand, twenty".