268049191 has 2 divisors, whose sum is σ = 268049192. Its totient is φ = 268049190.

The previous prime is 268049179. The next prime is 268049227. The reversal of 268049191 is 191940862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268049191 - 2⁹ = 268048679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268040191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134024595 + 134024596.

It is an arithmetic number, because the mean of its divisors is an integer number (134024596).

Almost surely, 2^268049191 is an apocalyptic number.

268049191 is a deficient number, since it is larger than the sum of its proper divisors (1).

268049191 is an equidigital number, since it uses as much as digits as its factorization.

268049191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 268049191 is about 16372.2078840943. The cubic root of 268049191 is about 644.7700167583.

The spelling of 268049191 in words is "two hundred sixty-eight million, forty-nine thousand, one hundred ninety-one".