268673191 has 2 divisors, whose sum is σ = 268673192. Its totient is φ = 268673190.

The previous prime is 268673137. The next prime is 268673257. The reversal of 268673191 is 191376862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268673191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268673101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134336595 + 134336596.

It is an arithmetic number, because the mean of its divisors is an integer number (134336596).

Almost surely, 2^268673191 is an apocalyptic number.

268673191 is a deficient number, since it is larger than the sum of its proper divisors (1).

268673191 is an equidigital number, since it uses as much as digits as its factorization.

268673191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 268673191 is about 16391.2534908103. The cubic root of 268673191 is about 645.2699557039.

The spelling of 268673191 in words is "two hundred sixty-eight million, six hundred seventy-three thousand, one hundred ninety-one".