268886851 has 2 divisors, whose sum is σ = 268886852. Its totient is φ = 268886850.

The previous prime is 268886843. The next prime is 268886887. The reversal of 268886851 is 158688862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268886851 - 2³ = 268886843 is a prime.

It is not a weakly prime, because it can be changed into another prime (268886831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134443425 + 134443426.

It is an arithmetic number, because the mean of its divisors is an integer number (134443426).

Almost surely, 2^268886851 is an apocalyptic number.

268886851 is a deficient number, since it is larger than the sum of its proper divisors (1).

268886851 is an equidigital number, since it uses as much as digits as its factorization.

268886851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1474560, while the sum is 52.

The square root of 268886851 is about 16397.7696959068. The cubic root of 268886851 is about 645.4409588076.

The spelling of 268886851 in words is "two hundred sixty-eight million, eight hundred eighty-six thousand, eight hundred fifty-one".