26561893229 has 16 divisors (see below), whose sum is σ = 27843323520. Its totient is φ = 25291284480.

The previous prime is 26561893213. The next prime is 26561893297. The reversal of 26561893229 is 92239816562.

It is a cyclic number.

It is not a de Polignac number, because 26561893229 - 2⁴ = 26561893213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561893129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5027069 + ... + 5032349.

It is an arithmetic number, because the mean of its divisors is an integer number (1740207720).

Almost surely, 2^26561893229 is an apocalyptic number.

It is an amenable number.

26561893229 is a deficient number, since it is larger than the sum of its proper divisors (1281430291).

26561893229 is a wasteful number, since it uses less digits than its factorization.

26561893229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260.

The product of its digits is 2799360, while the sum is 53.

The spelling of 26561893229 in words is "twenty-six billion, five hundred sixty-one million, eight hundred ninety-three thousand, two hundred twenty-nine".