268765859 has 2 divisors, whose sum is σ = 268765860. Its totient is φ = 268765858.

The previous prime is 268765843. The next prime is 268765883. The reversal of 268765859 is 958567862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268765859 - 2⁴ = 268765843 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (268767859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134382929 + 134382930.

It is an arithmetic number, because the mean of its divisors is an integer number (134382930).

Almost surely, 2^268765859 is an apocalyptic number.

268765859 is a deficient number, since it is larger than the sum of its proper divisors (1).

268765859 is an equidigital number, since it uses as much as digits as its factorization.

268765859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 56.

The square root of 268765859 is about 16394.0799985849. The cubic root of 268765859 is about 645.3441338068.

The spelling of 268765859 in words is "two hundred sixty-eight million, seven hundred sixty-five thousand, eight hundred fifty-nine".