268958771 has 2 divisors, whose sum is σ = 268958772. Its totient is φ = 268958770.

The previous prime is 268958749. The next prime is 268958773. The reversal of 268958771 is 177859862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268958771 - 2⁶ = 268958707 is a prime.

Together with 268958773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268958773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134479385 + 134479386.

It is an arithmetic number, because the mean of its divisors is an integer number (134479386).

Almost surely, 2^268958771 is an apocalyptic number.

268958771 is a deficient number, since it is larger than the sum of its proper divisors (1).

268958771 is an equidigital number, since it uses as much as digits as its factorization.

268958771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 53.

The square root of 268958771 is about 16399.9625304450. The cubic root of 268958771 is about 645.4984997094.

The spelling of 268958771 in words is "two hundred sixty-eight million, nine hundred fifty-eight thousand, seven hundred seventy-one".