268047811 has 2 divisors, whose sum is σ = 268047812. Its totient is φ = 268047810.

The previous prime is 268047809. The next prime is 268047817. The reversal of 268047811 is 118740862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268047811 - 2¹ = 268047809 is a prime.

Together with 268047809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (268047817) 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, 134023905 + 134023906.

It is an arithmetic number, because the mean of its divisors is an integer number (134023906).

Almost surely, 2^268047811 is an apocalyptic number.

268047811 is a deficient number, since it is larger than the sum of its proper divisors (1).

268047811 is an equidigital number, since it uses as much as digits as its factorization.

268047811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 268047811 is about 16372.1657394494. The cubic root of 268047811 is about 644.7689102647.

The spelling of 268047811 in words is "two hundred sixty-eight million, forty-seven thousand, eight hundred eleven".