26868268569 has 8 divisors (see below), whose sum is σ = 35871436512. Its totient is φ = 17888639840.

The previous prime is 26868268541. The next prime is 26868268573. The reversal of 26868268569 is 96586286862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26868268569 - 2⁸ = 26868268313 is a prime.

It is a super-2 number, since 2×26868268569² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26868268519) 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 in 7 ways as a sum of consecutive naturals, for example, 5882139 + ... + 5886704.

It is an arithmetic number, because the mean of its divisors is an integer number (4483929564).

Almost surely, 2^26868268569 is an apocalyptic number.

It is an amenable number.

26868268569 is a deficient number, since it is larger than the sum of its proper divisors (9003167943).

26868268569 is a wasteful number, since it uses less digits than its factorization.

26868268569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11769607.

The product of its digits is 119439360, while the sum is 66.

The spelling of 26868268569 in words is "twenty-six billion, eight hundred sixty-eight million, two hundred sixty-eight thousand, five hundred sixty-nine".