26866816808168 has 16 divisors (see below), whose sum is σ = 50379108749280. Its totient is φ = 13432387808368.

The previous prime is 26866816808147. The next prime is 26866816808207. The reversal of 26866816808168 is 86180861866862.

It is a junction number, because it is equal to n+sod(n) for n = 26866816808095 and 26866816808104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127462580 + ... + 127673187.

It is an arithmetic number, because the mean of its divisors is an integer number (3148694296830).

Almost surely, 2^{26866816808168} is an apocalyptic number.

It is an amenable number.

26866816808168 is a deficient number, since it is larger than the sum of its proper divisors (23512291941112).

26866816808168 is a wasteful number, since it uses less digits than its factorization.

26866816808168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255148936 (or 255148932 counting only the distinct ones).

The product of its (nonzero) digits is 509607936, while the sum is 74.

The spelling of 26866816808168 in words is "twenty-six trillion, eight hundred sixty-six billion, eight hundred sixteen million, eight hundred eight thousand, one hundred sixty-eight".