2163018889 has 2 divisors, whose sum is σ = 2163018890. Its totient is φ = 2163018888.

The previous prime is 2163018857. The next prime is 2163018917. The reversal of 2163018889 is 9888103612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1770978889 + 392040000 = 42083^2 + 19800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163018889 - 2⁵ = 2163018857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2163018829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081509444 + 1081509445.

It is an arithmetic number, because the mean of its divisors is an integer number (1081509445).

Almost surely, 2^2163018889 is an apocalyptic number.

It is an amenable number.

2163018889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163018889 is an equidigital number, since it uses as much as digits as its factorization.

2163018889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 2163018889 is about 46508.2668888016. The cubic root of 2163018889 is about 1293.2627558217.

The spelling of 2163018889 in words is "two billion, one hundred sixty-three million, eighteen thousand, eight hundred eighty-nine".