26081269 has 2 divisors, whose sum is σ = 26081270. Its totient is φ = 26081268.

The previous prime is 26081267. The next prime is 26081273. The reversal of 26081269 is 96218062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18818244 + 7263025 = 4338^2 + 2695^2 .

It is a cyclic number.

It is not a de Polignac number, because 26081269 - 2¹ = 26081267 is a prime.

It is a super-2 number, since 2×26081269² = 1360465185300722, which contains 22 as substring.

Together with 26081267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26081267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13040634 + 13040635.

It is an arithmetic number, because the mean of its divisors is an integer number (13040635).

Almost surely, 2^26081269 is an apocalyptic number.

It is an amenable number.

26081269 is a deficient number, since it is larger than the sum of its proper divisors (1).

26081269 is an equidigital number, since it uses as much as digits as its factorization.

26081269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 26081269 is about 5106.9823770990. The cubic root of 26081269 is about 296.5579513001.

The spelling of 26081269 in words is "twenty-six million, eighty-one thousand, two hundred sixty-nine".