268806751 has 2 divisors, whose sum is σ = 268806752. Its totient is φ = 268806750.

The previous prime is 268806749. The next prime is 268806757. The reversal of 268806751 is 157608862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268806751 - 2¹ = 268806749 is a prime.

Together with 268806749, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 268806698 and 268806707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268806757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134403375 + 134403376.

It is an arithmetic number, because the mean of its divisors is an integer number (134403376).

Almost surely, 2^268806751 is an apocalyptic number.

268806751 is a deficient number, since it is larger than the sum of its proper divisors (1).

268806751 is an equidigital number, since it uses as much as digits as its factorization.

268806751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 268806751 is about 16395.3271086612. The cubic root of 268806751 is about 645.3768612697.

The spelling of 268806751 in words is "two hundred sixty-eight million, eight hundred six thousand, seven hundred fifty-one".