20874273720 has 128 divisors (see below), whose sum is σ = 64823500800. Its totient is φ = 5373236736.

The previous prime is 20874273647. The next prime is 20874273733. The reversal of 20874273720 is 2737247802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545371 + ... + 582389.

It is an arithmetic number, because the mean of its divisors is an integer number (506433600).

Almost surely, 2^20874273720 is an apocalyptic number.

20874273720 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 20874273720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32411750400).

20874273720 is an abundant number, since it is smaller than the sum of its proper divisors (43949227080).

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

20874273720 is a wasteful number, since it uses less digits than its factorization.

20874273720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37197 (or 37193 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 42.

The spelling of 20874273720 in words is "twenty billion, eight hundred seventy-four million, two hundred seventy-three thousand, seven hundred twenty".