2643678299 has 2 divisors, whose sum is σ = 2643678300. Its totient is φ = 2643678298.

The previous prime is 2643678293. The next prime is 2643678311. The reversal of 2643678299 is 9928763462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2643678299 - 2²⁴ = 2626901083 is a prime.

It is not a weakly prime, because it can be changed into another prime (2643678293) 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, 1321839149 + 1321839150.

It is an arithmetic number, because the mean of its divisors is an integer number (1321839150).

Almost surely, 2^2643678299 is an apocalyptic number.

2643678299 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643678299 is an equidigital number, since it uses as much as digits as its factorization.

2643678299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The square root of 2643678299 is about 51416.7122538966. The cubic root of 2643678299 is about 1382.7262320321.

The spelling of 2643678299 in words is "two billion, six hundred forty-three million, six hundred seventy-eight thousand, two hundred ninety-nine".