26010191 has 2 divisors, whose sum is σ = 26010192. Its totient is φ = 26010190.

The previous prime is 26010169. The next prime is 26010233. The reversal of 26010191 is 19101062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26010191 - 2²² = 21815887 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26010991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13005095 + 13005096.

It is an arithmetic number, because the mean of its divisors is an integer number (13005096).

Almost surely, 2^26010191 is an apocalyptic number.

26010191 is a deficient number, since it is larger than the sum of its proper divisors (1).

26010191 is an equidigital number, since it uses as much as digits as its factorization.

26010191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 26010191 is about 5100.0187254558. The cubic root of 26010191 is about 296.2883079353.

The spelling of 26010191 in words is "twenty-six million, ten thousand, one hundred ninety-one".