268378211 has 4 divisors (see below), whose sum is σ = 282503400. Its totient is φ = 254253024.

The previous prime is 268378199. The next prime is 268378213. The reversal of 268378211 is 112873862.

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

It is a cyclic number.

It is not a de Polignac number, because 268378211 - 2⁶ = 268378147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268378213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7062566 + ... + 7062603.

It is an arithmetic number, because the mean of its divisors is an integer number (70625850).

Almost surely, 2^268378211 is an apocalyptic number.

268378211 is a deficient number, since it is larger than the sum of its proper divisors (14125189).

268378211 is a wasteful number, since it uses less digits than its factorization.

268378211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125188.

The product of its digits is 32256, while the sum is 38.

The square root of 268378211 is about 16382.2529280926. The cubic root of 268378211 is about 645.0337189672.

The spelling of 268378211 in words is "two hundred sixty-eight million, three hundred seventy-eight thousand, two hundred eleven".