868740263 has 2 divisors, whose sum is σ = 868740264. Its totient is φ = 868740262.

The previous prime is 868740259. The next prime is 868740293. The reversal of 868740263 is 362047868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868740263 - 2² = 868740259 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868740203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434370131 + 434370132.

It is an arithmetic number, because the mean of its divisors is an integer number (434370132).

Almost surely, 2^868740263 is an apocalyptic number.

868740263 is a deficient number, since it is larger than the sum of its proper divisors (1).

868740263 is an equidigital number, since it uses as much as digits as its factorization.

868740263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 868740263 is about 29474.4001296040. The cubic root of 868740263 is about 954.1792837404.

The spelling of 868740263 in words is "eight hundred sixty-eight million, seven hundred forty thousand, two hundred sixty-three".