2163767213 has 2 divisors, whose sum is σ = 2163767214. Its totient is φ = 2163767212.

The previous prime is 2163767209. The next prime is 2163767273. The reversal of 2163767213 is 3127673612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555750249 + 608016964 = 39443^2 + 24658^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163767213 - 2² = 2163767209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163767273) 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 as a sum of consecutive naturals, namely, 1081883606 + 1081883607.

It is an arithmetic number, because the mean of its divisors is an integer number (1081883607).

Almost surely, 2^2163767213 is an apocalyptic number.

It is an amenable number.

2163767213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163767213 is an equidigital number, since it uses as much as digits as its factorization.

2163767213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 2163767213 is about 46516.3112574503. The cubic root of 2163767213 is about 1293.4118788799.

The spelling of 2163767213 in words is "two billion, one hundred sixty-three million, seven hundred sixty-seven thousand, two hundred thirteen".