268785899 has 2 divisors, whose sum is σ = 268785900. Its totient is φ = 268785898.

The previous prime is 268785883. The next prime is 268785919. The reversal of 268785899 is 998587862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268785899 - 2⁴ = 268785883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268785499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134392949 + 134392950.

It is an arithmetic number, because the mean of its divisors is an integer number (134392950).

Almost surely, 2^268785899 is an apocalyptic number.

268785899 is a deficient number, since it is larger than the sum of its proper divisors (1).

268785899 is an equidigital number, since it uses as much as digits as its factorization.

268785899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 62.

The square root of 268785899 is about 16394.6911834289. The cubic root of 268785899 is about 645.3601730154.

The spelling of 268785899 in words is "two hundred sixty-eight million, seven hundred eighty-five thousand, eight hundred ninety-nine".