20027273920 has 112 divisors (see below), whose sum is σ = 49825290240. Its totient is φ = 7653088256.

The previous prime is 20027273909. The next prime is 20027273921. The reversal of 20027273920 is 2937272002.

It is not an unprimeable number, because it can be changed into a prime (20027273921) 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, 9706809 + ... + 9708871.

Almost surely, 2^20027273920 is an apocalyptic number.

20027273920 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 20027273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24912645120).

20027273920 is an abundant number, since it is smaller than the sum of its proper divisors (29798016320).

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

20027273920 is a wasteful number, since it uses less digits than its factorization.

20027273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 20027273920 in words is "twenty billion, twenty-seven million, two hundred seventy-three thousand, nine hundred twenty".