2163836813 has 2 divisors, whose sum is σ = 2163836814. Its totient is φ = 2163836812.

The previous prime is 2163836791. The next prime is 2163836833. The reversal of 2163836813 is 3186383612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2138415049 + 25421764 = 46243^2 + 5042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163836813 - 2¹⁰ = 2163835789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163836833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081918406 + 1081918407.

It is an arithmetic number, because the mean of its divisors is an integer number (1081918407).

Almost surely, 2^2163836813 is an apocalyptic number.

It is an amenable number.

2163836813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163836813 is an equidigital number, since it uses as much as digits as its factorization.

2163836813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 2163836813 is about 46517.0593761042. The cubic root of 2163836813 is about 1293.4257467459.

The spelling of 2163836813 in words is "two billion, one hundred sixty-three million, eight hundred thirty-six thousand, eight hundred thirteen".