268965911 has 2 divisors, whose sum is σ = 268965912. Its totient is φ = 268965910.

The previous prime is 268965901. The next prime is 268965943. The reversal of 268965911 is 119569862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268965911 - 2¹⁰ = 268964887 is a prime.

It is a super-2 number, since 2×268965911² = 144685322560119842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268965901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134482955 + 134482956.

It is an arithmetic number, because the mean of its divisors is an integer number (134482956).

Almost surely, 2^268965911 is an apocalyptic number.

268965911 is a deficient number, since it is larger than the sum of its proper divisors (1).

268965911 is an equidigital number, since it uses as much as digits as its factorization.

268965911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 47.

The square root of 268965911 is about 16400.1802124245. The cubic root of 268965911 is about 645.5042116363.

The spelling of 268965911 in words is "two hundred sixty-eight million, nine hundred sixty-five thousand, nine hundred eleven".