2643163613 has 2 divisors, whose sum is σ = 2643163614. Its totient is φ = 2643163612.

The previous prime is 2643163577. The next prime is 2643163619. The reversal of 2643163613 is 3163613462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2548432324 + 94731289 = 50482^2 + 9733^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643163613 - 2⁸ = 2643163357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2643163619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321581806 + 1321581807.

It is an arithmetic number, because the mean of its divisors is an integer number (1321581807).

Almost surely, 2^2643163613 is an apocalyptic number.

It is an amenable number.

2643163613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643163613 is an equidigital number, since it uses as much as digits as its factorization.

2643163613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 35.

The square root of 2643163613 is about 51411.7069644648. The cubic root of 2643163613 is about 1382.6364939296.

The spelling of 2643163613 in words is "two billion, six hundred forty-three million, one hundred sixty-three thousand, six hundred thirteen".