20809410084 has 48 divisors (see below), whose sum is σ = 53964691200. Its totient is φ = 6934622688.

The previous prime is 20809410073. The next prime is 20809410091. The reversal of 20809410084 is 48001490802.

It is a super-3 number, since 3×20809410084³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416914 + ... + 464150.

It is an arithmetic number, because the mean of its divisors is an integer number (1124264400).

Almost surely, 2^20809410084 is an apocalyptic number.

It is an amenable number.

20809410084 is an abundant number, since it is smaller than the sum of its proper divisors (33155281116).

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

20809410084 is a wasteful number, since it uses less digits than its factorization.

20809410084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51329 (or 51321 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 20809410084 in words is "twenty billion, eight hundred nine million, four hundred ten thousand, eighty-four".