26194019 has 2 divisors, whose sum is σ = 26194020. Its totient is φ = 26194018.

The previous prime is 26194013. The next prime is 26194057. The reversal of 26194019 is 91049162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26194019 - 2⁸ = 26193763 is a prime.

It is a super-2 number, since 2×26194019² = 1372253262744722, which contains 22 as substring.

It is equal to p_1635863 and since 26194019 and 1635863 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (26194013) 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, 13097009 + 13097010.

It is an arithmetic number, because the mean of its divisors is an integer number (13097010).

Almost surely, 2^26194019 is an apocalyptic number.

26194019 is a deficient number, since it is larger than the sum of its proper divisors (1).

26194019 is an equidigital number, since it uses as much as digits as its factorization.

26194019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 26194019 is about 5118.0092809607. The cubic root of 26194019 is about 296.9846795333.

The spelling of 26194019 in words is "twenty-six million, one hundred ninety-four thousand, nineteen".