20089818384 has 80 divisors (see below), whose sum is σ = 52475212800. Its totient is φ = 6622439040.

The previous prime is 20089818383. The next prime is 20089818389. The reversal of 20089818384 is 48381898002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20089818383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3237717 + ... + 3243915.

It is an arithmetic number, because the mean of its divisors is an integer number (655940160).

Almost surely, 2^20089818384 is an apocalyptic number.

20089818384 is a gapful number since it is divisible by the number (24) 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 20089818384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26237606400).

20089818384 is an abundant number, since it is smaller than the sum of its proper divisors (32385394416).

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

20089818384 is a wasteful number, since it uses less digits than its factorization.

20089818384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948 (or 6942 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 20089818384 in words is "twenty billion, eighty-nine million, eight hundred eighteen thousand, three hundred eighty-four".