268554667 has 2 divisors, whose sum is σ = 268554668. Its totient is φ = 268554666.

The previous prime is 268554641. The next prime is 268554677. The reversal of 268554667 is 766455862.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268554667 - 2²³ = 260166059 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268554667.

It is not a weakly prime, because it can be changed into another prime (268554677) 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, 134277333 + 134277334.

It is an arithmetic number, because the mean of its divisors is an integer number (134277334).

Almost surely, 2^268554667 is an apocalyptic number.

268554667 is a deficient number, since it is larger than the sum of its proper divisors (1).

268554667 is an equidigital number, since it uses as much as digits as its factorization.

268554667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 49.

The square root of 268554667 is about 16387.6376271871. The cubic root of 268554667 is about 645.1750557438.

The spelling of 268554667 in words is "two hundred sixty-eight million, five hundred fifty-four thousand, six hundred sixty-seven".