268311847 has 2 divisors, whose sum is σ = 268311848. Its totient is φ = 268311846.

The previous prime is 268311821. The next prime is 268311877. The reversal of 268311847 is 748113862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268311847 - 2¹⁵ = 268279079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268311817) 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, 134155923 + 134155924.

It is an arithmetic number, because the mean of its divisors is an integer number (134155924).

Almost surely, 2^268311847 is an apocalyptic number.

268311847 is a deficient number, since it is larger than the sum of its proper divisors (1).

268311847 is an equidigital number, since it uses as much as digits as its factorization.

268311847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 40.

The square root of 268311847 is about 16380.2273183250. The cubic root of 268311847 is about 644.9805470567.

The spelling of 268311847 in words is "two hundred sixty-eight million, three hundred eleven thousand, eight hundred forty-seven".