268818113 has 4 divisors (see below), whose sum is σ = 269475780. Its totient is φ = 268160448.

The previous prime is 268818097. The next prime is 268818149. The reversal of 268818113 is 311818862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157452304 + 111365809 = 12548^2 + 10553^2 .

It is a cyclic number.

It is not a de Polignac number, because 268818113 - 2⁴ = 268818097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268818013) 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 in 3 ways as a sum of consecutive naturals, for example, 328220 + ... + 329037.

It is an arithmetic number, because the mean of its divisors is an integer number (67368945).

Almost surely, 2^268818113 is an apocalyptic number.

It is an amenable number.

268818113 is a deficient number, since it is larger than the sum of its proper divisors (657667).

268818113 is an equidigital number, since it uses as much as digits as its factorization.

268818113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657666.

The product of its digits is 18432, while the sum is 38.

The square root of 268818113 is about 16395.6736061682. The cubic root of 268818113 is about 645.3859541324.

The spelling of 268818113 in words is "two hundred sixty-eight million, eight hundred eighteen thousand, one hundred thirteen".