266883269 has 2 divisors, whose sum is σ = 266883270. Its totient is φ = 266883268.

The previous prime is 266883223. The next prime is 266883271. The reversal of 266883269 is 962388662.

266883269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266668900 + 214369 = 16330^2 + 463^2 .

It is a cyclic number.

It is not a de Polignac number, because 266883269 - 2⁸ = 266883013 is a prime.

It is a super-2 number, since 2×266883269² = 142453358544252722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 266883271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266883299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133441634 + 133441635.

It is an arithmetic number, because the mean of its divisors is an integer number (133441635).

Almost surely, 2^266883269 is an apocalyptic number.

It is an amenable number.

266883269 is a deficient number, since it is larger than the sum of its proper divisors (1).

266883269 is an equidigital number, since it uses as much as digits as its factorization.

266883269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The square root of 266883269 is about 16336.5623372850. The cubic root of 266883269 is about 643.8338152848.

The spelling of 266883269 in words is "two hundred sixty-six million, eight hundred eighty-three thousand, two hundred sixty-nine".