2643916799 has 2 divisors, whose sum is σ = 2643916800. Its totient is φ = 2643916798.

The previous prime is 2643916763. The next prime is 2643916817. The reversal of 2643916799 is 9976193462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2643916799 - 2⁸ = 2643916543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2643916729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321958399 + 1321958400.

It is an arithmetic number, because the mean of its divisors is an integer number (1321958400).

Almost surely, 2^2643916799 is an apocalyptic number.

2643916799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643916799 is an equidigital number, since it uses as much as digits as its factorization.

2643916799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 2643916799 is about 51419.0314864059. The cubic root of 2643916799 is about 1382.7678117621.

The spelling of 2643916799 in words is "two billion, six hundred forty-three million, nine hundred sixteen thousand, seven hundred ninety-nine".