20547282944 has 96 divisors (see below), whose sum is σ = 43579710720. Its totient is φ = 9664512000.

The previous prime is 20547282937. The next prime is 20547282953. The reversal of 20547282944 is 44928274502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869769 + ... + 2876919.

It is an arithmetic number, because the mean of its divisors is an integer number (453955320).

Almost surely, 2^20547282944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20547282944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21789855360).

20547282944 is an abundant number, since it is smaller than the sum of its proper divisors (23032427776).

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

20547282944 is an equidigital number, since it uses as much as digits as its factorization.

20547282944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7257 (or 7237 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 20547282944 in words is "twenty billion, five hundred forty-seven million, two hundred eighty-two thousand, nine hundred forty-four".