26129911 has 2 divisors, whose sum is σ = 26129912. Its totient is φ = 26129910.

The previous prime is 26129897. The next prime is 26129923. The reversal of 26129911 is 11992162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26129911 - 2⁹ = 26129399 is a 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 (26129951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13064955 + 13064956.

It is an arithmetic number, because the mean of its divisors is an integer number (13064956).

Almost surely, 2^26129911 is an apocalyptic number.

26129911 is a deficient number, since it is larger than the sum of its proper divisors (1).

26129911 is an equidigital number, since it uses as much as digits as its factorization.

26129911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 26129911 is about 5111.7424622138. The cubic root of 26129911 is about 296.7421986415.

The spelling of 26129911 in words is "twenty-six million, one hundred twenty-nine thousand, nine hundred eleven".