268186873 has 2 divisors, whose sum is σ = 268186874. Its totient is φ = 268186872.

The previous prime is 268186871. The next prime is 268186907. The reversal of 268186873 is 378681862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262051344 + 6135529 = 16188^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 268186873 - 2¹ = 268186871 is a prime.

Together with 268186871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (268186871) 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, 134093436 + 134093437.

It is an arithmetic number, because the mean of its divisors is an integer number (134093437).

Almost surely, 2^268186873 is an apocalyptic number.

It is an amenable number.

268186873 is a deficient number, since it is larger than the sum of its proper divisors (1).

268186873 is an equidigital number, since it uses as much as digits as its factorization.

268186873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 268186873 is about 16376.4120917862. The cubic root of 268186873 is about 644.8803920594.

The spelling of 268186873 in words is "two hundred sixty-eight million, one hundred eighty-six thousand, eight hundred seventy-three".