2609649599 has 2 divisors, whose sum is σ = 2609649600. Its totient is φ = 2609649598.

The previous prime is 2609649589. The next prime is 2609649607. The reversal of 2609649599 is 9959469062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2609649599 - 2²⁴ = 2592872383 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 (2609649589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304824799 + 1304824800.

It is an arithmetic number, because the mean of its divisors is an integer number (1304824800).

Almost surely, 2^2609649599 is an apocalyptic number.

2609649599 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609649599 is an equidigital number, since it uses as much as digits as its factorization.

2609649599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The square root of 2609649599 is about 51084.7296068013. The cubic root of 2609649599 is about 1376.7679031824.

The spelling of 2609649599 in words is "two billion, six hundred nine million, six hundred forty-nine thousand, five hundred ninety-nine".