20383689928900 has 81 divisors (see below), whose sum is σ = 44369701018279. Its totient is φ = 8128283220160.

The previous prime is 20383689928883. The next prime is 20383689928913. The reversal of 20383689928900 is 982998638302.

The square root of 20383689928900 is 4514830.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 777356095684 + 19606333833216 = 881678^2 + 4427904^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22980484257 + ... + 22980485143.

Almost surely, 2^{20383689928900} is an apocalyptic number.

20383689928900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20383689928900 is the 4514830-th square number.

It is an amenable number.

20383689928900 is an abundant number, since it is smaller than the sum of its proper divisors (23986011089379).

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

20383689928900 is an frugal number, since it uses more digits than its factorization.

20383689928900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 67.

The spelling of 20383689928900 in words is "twenty trillion, three hundred eighty-three billion, six hundred eighty-nine million, nine hundred twenty-eight thousand, nine hundred".