2163091288 has 32 divisors (see below), whose sum is σ = 4296998160. Its totient is φ = 1017303040.

The previous prime is 2163091283. The next prime is 2163091291. The reversal of 2163091288 is 8821903612.

It is a self number, because there is not a number n which added to its sum of digits gives 2163091288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163091283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279195 + ... + 286837.

Almost surely, 2^2163091288 is an apocalyptic number.

It is an amenable number.

2163091288 is a deficient number, since it is larger than the sum of its proper divisors (2133906872).

2163091288 is a wasteful number, since it uses less digits than its factorization.

2163091288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747 (or 9743 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2163091288 is about 46509.0452277834. The cubic root of 2163091288 is about 1293.2771847118.

The spelling of 2163091288 in words is "two billion, one hundred sixty-three million, ninety-one thousand, two hundred eighty-eight".