26102891 has 2 divisors, whose sum is σ = 26102892. Its totient is φ = 26102890.

The previous prime is 26102873. The next prime is 26102893. The reversal of 26102891 is 19820162.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26102891 is a prime.

Together with 26102893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26102893) 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, 13051445 + 13051446.

It is an arithmetic number, because the mean of its divisors is an integer number (13051446).

Almost surely, 2^26102891 is an apocalyptic number.

26102891 is a deficient number, since it is larger than the sum of its proper divisors (1).

26102891 is an equidigital number, since it uses as much as digits as its factorization.

26102891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 26102891 is about 5109.0988442190. The cubic root of 26102891 is about 296.6398798915.

The spelling of 26102891 in words is "twenty-six million, one hundred two thousand, eight hundred ninety-one".