2259658909 has 2 divisors, whose sum is σ = 2259658910. Its totient is φ = 2259658908.

The previous prime is 2259658873. The next prime is 2259658963. The reversal of 2259658909 is 9098569522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2259100900 + 558009 = 47530^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 2259658909 - 2⁹ = 2259658397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2259658909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2259658109) 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, 1129829454 + 1129829455.

It is an arithmetic number, because the mean of its divisors is an integer number (1129829455).

Almost surely, 2^2259658909 is an apocalyptic number.

It is an amenable number.

2259658909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259658909 is an equidigital number, since it uses as much as digits as its factorization.

2259658909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 2259658909 is about 47535.8697090944. The cubic root of 2259658909 is about 1312.2430946183.

The spelling of 2259658909 in words is "two billion, two hundred fifty-nine million, six hundred fifty-eight thousand, nine hundred nine".