2263663989 has 20 divisors (see below), whose sum is σ = 3490608000. Its totient is φ = 1460426760.

The previous prime is 2263663981. The next prime is 2263664023. The reversal of 2263663989 is 9893663622.

It is not a de Polignac number, because 2263663989 - 2³ = 2263663981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263663981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 448239 + ... + 453260.

It is an arithmetic number, because the mean of its divisors is an integer number (174530400).

Almost surely, 2^2263663989 is an apocalyptic number.

It is an amenable number.

2263663989 is a deficient number, since it is larger than the sum of its proper divisors (1226944011).

2263663989 is an equidigital number, since it uses as much as digits as its factorization.

2263663989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901542 (or 901533 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 2263663989 is about 47577.9779835167. The cubic root of 2263663989 is about 1313.0179219647.

The spelling of 2263663989 in words is "two billion, two hundred sixty-three million, six hundred sixty-three thousand, nine hundred eighty-nine".