26108435361685 has 4 divisors (see below), whose sum is σ = 31330122434028. Its totient is φ = 20886748289344.

The previous prime is 26108435361677. The next prime is 26108435361739. The reversal of 26108435361685 is 58616353480162.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11116469534769 + 14991965826916 = 3334137^2 + 3871946^2 .

It is a cyclic number.

It is not a de Polignac number, because 26108435361685 - 2³ = 26108435361677 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610843536164 + ... + 2610843536173.

It is an arithmetic number, because the mean of its divisors is an integer number (7832530608507).

Almost surely, 2^{26108435361685} is an apocalyptic number.

It is an amenable number.

26108435361685 is a deficient number, since it is larger than the sum of its proper divisors (5221687072343).

26108435361685 is an equidigital number, since it uses as much as digits as its factorization.

26108435361685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221687072342.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 26108435361685 in words is "twenty-six trillion, one hundred eight billion, four hundred thirty-five million, three hundred sixty-one thousand, six hundred eighty-five".