2659591679 has 16 divisors (see below), whose sum is σ = 2749593600. Its totient is φ = 2571134304.

The previous prime is 2659591661. The next prime is 2659591721. The reversal of 2659591679 is 9761959562.

It is a cyclic number.

It is not a de Polignac number, because 2659591679 - 2¹⁶ = 2659526143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659591609) 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 in 15 ways as a sum of consecutive naturals, for example, 2559242 + ... + 2560280.

It is an arithmetic number, because the mean of its divisors is an integer number (171849600).

Almost surely, 2^2659591679 is an apocalyptic number.

2659591679 is a deficient number, since it is larger than the sum of its proper divisors (90001921).

2659591679 is a wasteful number, since it uses less digits than its factorization.

2659591679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its digits is 9185400, while the sum is 59.

The square root of 2659591679 is about 51571.2291786806. The cubic root of 2659591679 is about 1385.4950819052.

The spelling of 2659591679 in words is "two billion, six hundred fifty-nine million, five hundred ninety-one thousand, six hundred seventy-nine".