263766263 has 2 divisors, whose sum is σ = 263766264. Its totient is φ = 263766262.

The previous prime is 263766163. The next prime is 263766289. The reversal of 263766263 is 362667362.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263766263 - 2¹⁴ = 263749879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 263766263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263766163) 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 as a sum of consecutive naturals, namely, 131883131 + 131883132.

It is an arithmetic number, because the mean of its divisors is an integer number (131883132).

Almost surely, 2^263766263 is an apocalyptic number.

263766263 is a deficient number, since it is larger than the sum of its proper divisors (1).

263766263 is an equidigital number, since it uses as much as digits as its factorization.

263766263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 41.

The square root of 263766263 is about 16240.8824575514. The cubic root of 263766263 is about 641.3174870043.

The spelling of 263766263 in words is "two hundred sixty-three million, seven hundred sixty-six thousand, two hundred sixty-three".