2685604589 has 2 divisors, whose sum is σ = 2685604590. Its totient is φ = 2685604588.

The previous prime is 2685604583. The next prime is 2685604619. The reversal of 2685604589 is 9854065862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1721005225 + 964599364 = 41485^2 + 31058^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685604589 - 2⁴ = 2685604573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2685604589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2685604583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342802294 + 1342802295.

It is an arithmetic number, because the mean of its divisors is an integer number (1342802295).

Almost surely, 2^2685604589 is an apocalyptic number.

It is an amenable number.

2685604589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685604589 is an equidigital number, since it uses as much as digits as its factorization.

2685604589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The square root of 2685604589 is about 51822.8191919351. The cubic root of 2685604589 is about 1389.9975137543.

The spelling of 2685604589 in words is "two billion, six hundred eighty-five million, six hundred four thousand, five hundred eighty-nine".