2163725888 has 14 divisors (see below), whose sum is σ = 4293643686. Its totient is φ = 1081862912.

The previous prime is 2163725857. The next prime is 2163725891. The reversal of 2163725888 is 8885273612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2155930624 + 7795264 = 46432^2 + 2792^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16904045 + ... + 16904172.

Almost surely, 2^2163725888 is an apocalyptic number.

It is an amenable number.

2163725888 is a deficient number, since it is larger than the sum of its proper divisors (2129917798).

2163725888 is an equidigital number, since it uses as much as digits as its factorization.

2163725888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33808229 (or 33808219 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 2163725888 is about 46515.8670563067. The cubic root of 2163725888 is about 1293.4036446937.

The spelling of 2163725888 in words is "two billion, one hundred sixty-three million, seven hundred twenty-five thousand, eight hundred eighty-eight".