2668479589 has 2 divisors, whose sum is σ = 2668479590. Its totient is φ = 2668479588.

The previous prime is 2668479581. The next prime is 2668479679. The reversal of 2668479589 is 9859748662.

2668479589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1567368100 + 1101111489 = 39590^2 + 33183^2 .

It is a cyclic number.

It is not a de Polignac number, because 2668479589 - 2³ = 2668479581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2668479589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2668479581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334239794 + 1334239795.

It is an arithmetic number, because the mean of its divisors is an integer number (1334239795).

Almost surely, 2^2668479589 is an apocalyptic number.

It is an amenable number.

2668479589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668479589 is an equidigital number, since it uses as much as digits as its factorization.

2668479589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 64.

The square root of 2668479589 is about 51657.3285120321. The cubic root of 2668479589 is about 1387.0367300486.

The spelling of 2668479589 in words is "two billion, six hundred sixty-eight million, four hundred seventy-nine thousand, five hundred eighty-nine".