2536890788644 has 27 divisors (see below), whose sum is σ = 4472970433267. Its totient is φ = 1258970053184.

The previous prime is 2536890788639. The next prime is 2536890788647. The reversal of 2536890788644 is 4468870986352.

It is a happy number.

The square root of 2536890788644 is 1592762.

It is a perfect power (a square), and thus also a powerful number.

2536890788644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 204428771044 + 2332462017600 = 452138^2 + 1527240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2536890788647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 436413882 + ... + 436419694.

Almost surely, 2^{2536890788644} is an apocalyptic number.

2536890788644 is the 1592762-nd square number.

It is an amenable number.

2536890788644 is a deficient number, since it is larger than the sum of its proper divisors (1936079644623).

2536890788644 is an frugal number, since it uses more digits than its factorization.

2536890788644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11904 (or 5952 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 70.

The spelling of 2536890788644 in words is "two trillion, five hundred thirty-six billion, eight hundred ninety million, seven hundred eighty-eight thousand, six hundred forty-four".