268511282287 has 6 divisors (see below), whose sum is σ = 285235168688. Its totient is φ = 252716500704.

The previous prime is 268511282261. The next prime is 268511282323. The reversal of 268511282287 is 782282115862.

It is a happy number.

It is not a de Polignac number, because 268511282287 - 2³⁵ = 234151543919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268511382287) 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 in 5 ways as a sum of consecutive naturals, for example, 464552103 + ... + 464552680.

Almost surely, 2^268511282287 is an apocalyptic number.

268511282287 is a deficient number, since it is larger than the sum of its proper divisors (16723886401).

268511282287 is an equidigital number, since it uses as much as digits as its factorization.

268511282287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929104817 (or 929104800 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 52.

The spelling of 268511282287 in words is "two hundred sixty-eight billion, five hundred eleven million, two hundred eighty-two thousand, two hundred eighty-seven".