268809759 has 12 divisors (see below), whose sum is σ = 402661896. Its totient is φ = 179206344.

The previous prime is 268809719. The next prime is 268809781. The reversal of 268809759 is 957908862.

It is a happy number.

It is not a de Polignac number, because 268809759 - 2⁷ = 268809631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268809719) 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 in 11 ways as a sum of consecutive naturals, for example, 552864 + ... + 553349.

It is an arithmetic number, because the mean of its divisors is an integer number (33555158).

Almost surely, 2^268809759 is an apocalyptic number.

268809759 is a deficient number, since it is larger than the sum of its proper divisors (133852137).

268809759 is an equidigital number, since it uses as much as digits as its factorization.

268809759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106228 (or 1106216 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 268809759 is about 16395.4188418595. The cubic root of 268809759 is about 645.3792685584.

The spelling of 268809759 in words is "two hundred sixty-eight million, eight hundred nine thousand, seven hundred fifty-nine".