2020485987844 has 81 divisors (see below), whose sum is σ = 3804024092799. Its totient is φ = 938831370240.

The previous prime is 2020485987799. The next prime is 2020485987853. The reversal of 2020485987844 is 4487895840202.

The square root of 2020485987844 is 1421438.

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 118293347844 + 1902192640000 = 343938^2 + 1379200^2 .

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, 4687902309 + ... + 4687902739.

Almost surely, 2^{2020485987844} is an apocalyptic number.

2020485987844 is the 1421438-th square number.

It is an amenable number.

2020485987844 is a deficient number, since it is larger than the sum of its proper divisors (1783538104955).

2020485987844 is an frugal number, since it uses more digits than its factorization.

2020485987844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 2020485987844 in words is "two trillion, twenty billion, four hundred eighty-five million, nine hundred eighty-seven thousand, eight hundred forty-four".