26409185459 has 4 divisors (see below), whose sum is σ = 26419622280. Its totient is φ = 26398748640.

The previous prime is 26409185447. The next prime is 26409185497. The reversal of 26409185459 is 95458190462.

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

It is a cyclic number.

It is not a de Polignac number, because 26409185459 - 2¹² = 26409181363 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 26409185459.

It is not an unprimeable number, because it can be changed into a prime (26409685459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5214614 + ... + 5219675.

It is an arithmetic number, because the mean of its divisors is an integer number (6604905570).

Almost surely, 2^26409185459 is an apocalyptic number.

26409185459 is a deficient number, since it is larger than the sum of its proper divisors (10436821).

26409185459 is a wasteful number, since it uses less digits than its factorization.

26409185459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436820.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 26409185459 in words is "twenty-six billion, four hundred nine million, one hundred eighty-five thousand, four hundred fifty-nine".