26969904559 has 16 divisors (see below), whose sum is σ = 30596685280. Its totient is φ = 23566878720.

The previous prime is 26969904539. The next prime is 26969904587. The reversal of 26969904559 is 95540996962.

It is a cyclic number.

It is not a de Polignac number, because 26969904559 - 2⁷ = 26969904431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26969904559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26969904539) 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 15 ways as a sum of consecutive naturals, for example, 284959 + ... + 367615.

It is an arithmetic number, because the mean of its divisors is an integer number (1912292830).

Almost surely, 2^26969904559 is an apocalyptic number.

26969904559 is a deficient number, since it is larger than the sum of its proper divisors (3626780721).

26969904559 is a wasteful number, since it uses less digits than its factorization.

26969904559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84010.

The product of its (nonzero) digits is 47239200, while the sum is 64.

The spelling of 26969904559 in words is "twenty-six billion, nine hundred sixty-nine million, nine hundred four thousand, five hundred fifty-nine".