268468219 has 2 divisors, whose sum is σ = 268468220. Its totient is φ = 268468218.

The previous prime is 268468217. The next prime is 268468229. The reversal of 268468219 is 912864862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268468219 - 2¹ = 268468217 is a prime.

It is a super-2 number, since 2×268468219² = 144150369226063922, which contains 22 as substring.

Together with 268468217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (268468217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134234109 + 134234110.

It is an arithmetic number, because the mean of its divisors is an integer number (134234110).

Almost surely, 2^268468219 is an apocalyptic number.

268468219 is a deficient number, since it is larger than the sum of its proper divisors (1).

268468219 is an equidigital number, since it uses as much as digits as its factorization.

268468219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 268468219 is about 16384.9998169057. Note that the first 3 decimals coincide. The cubic root of 268468219 is about 645.1058208286.

The spelling of 268468219 in words is "two hundred sixty-eight million, four hundred sixty-eight thousand, two hundred nineteen".