268526263 has 2 divisors, whose sum is σ = 268526264. Its totient is φ = 268526262.

The previous prime is 268526239. The next prime is 268526281. The reversal of 268526263 is 362625862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268526263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268526213) 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 as a sum of consecutive naturals, namely, 134263131 + 134263132.

It is an arithmetic number, because the mean of its divisors is an integer number (134263132).

Almost surely, 2^268526263 is an apocalyptic number.

268526263 is a deficient number, since it is larger than the sum of its proper divisors (1).

268526263 is an equidigital number, since it uses as much as digits as its factorization.

268526263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 268526263 is about 16386.7709753935. The cubic root of 268526263 is about 645.1523090425.

The spelling of 268526263 in words is "two hundred sixty-eight million, five hundred twenty-six thousand, two hundred sixty-three".