2288663685889 has 9 divisors (see below), whose sum is σ = 2662335382017. Its totient is φ = 1961702653764.

The previous prime is 2288663685859. The next prime is 2288663685899. The reversal of 2288663685889 is 9885863668822.

The square root of 2288663685889 is 1512833.

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

2288663685889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2288663685889 - 2¹⁹ = 2288663161601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2288663685809) 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, 10481772 + ... + 10697890.

Almost surely, 2^{2288663685889} is an apocalyptic number.

2288663685889 is the 1512833-rd square number.

2288663685889 is the 756417-th centered octagonal number.

It is an amenable number.

2288663685889 is a deficient number, since it is larger than the sum of its proper divisors (373671696128).

2288663685889 is an frugal number, since it uses more digits than its factorization.

2288663685889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432252 (or 216126 counting only the distinct ones).

The product of its digits is 3822059520, while the sum is 79.

The spelling of 2288663685889 in words is "two trillion, two hundred eighty-eight billion, six hundred sixty-three million, six hundred eighty-five thousand, eight hundred eighty-nine".