2597689099 has 2 divisors, whose sum is σ = 2597689100. Its totient is φ = 2597689098.

The previous prime is 2597689057. The next prime is 2597689117. The reversal of 2597689099 is 9909867952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2597689099 - 2⁷ = 2597688971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2597689099.

It is not a weakly prime, because it can be changed into another prime (2597689049) 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, 1298844549 + 1298844550.

It is an arithmetic number, because the mean of its divisors is an integer number (1298844550).

Almost surely, 2^2597689099 is an apocalyptic number.

2597689099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2597689099 is an equidigital number, since it uses as much as digits as its factorization.

2597689099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The square root of 2597689099 is about 50967.5298498956. The cubic root of 2597689099 is about 1374.6613555453.

The spelling of 2597689099 in words is "two billion, five hundred ninety-seven million, six hundred eighty-nine thousand, ninety-nine".