2659609679 has 2 divisors, whose sum is σ = 2659609680. Its totient is φ = 2659609678.

The previous prime is 2659609663. The next prime is 2659609703. The reversal of 2659609679 is 9769069562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2659609679 - 2⁴ = 2659609663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2659609609) 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, 1329804839 + 1329804840.

It is an arithmetic number, because the mean of its divisors is an integer number (1329804840).

Almost surely, 2^2659609679 is an apocalyptic number.

2659609679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659609679 is an equidigital number, since it uses as much as digits as its factorization.

2659609679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The square root of 2659609679 is about 51571.4036942955. The cubic root of 2659609679 is about 1385.4982075548.

The spelling of 2659609679 in words is "two billion, six hundred fifty-nine million, six hundred nine thousand, six hundred seventy-nine".