26108099249 has 2 divisors, whose sum is σ = 26108099250. Its totient is φ = 26108099248.

The previous prime is 26108099209. The next prime is 26108099267. The reversal of 26108099249 is 94299080162.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21435009649 + 4673089600 = 146407^2 + 68360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26108099249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26108099197 and 26108099206.

It is not a weakly prime, because it can be changed into another prime (26108099209) 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, 13054049624 + 13054049625.

It is an arithmetic number, because the mean of its divisors is an integer number (13054049625).

Almost surely, 2^26108099249 is an apocalyptic number.

It is an amenable number.

26108099249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26108099249 is an equidigital number, since it uses as much as digits as its factorization.

26108099249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 26108099249 in words is "twenty-six billion, one hundred eight million, ninety-nine thousand, two hundred forty-nine".