11826136589 has 4 divisors (see below), whose sum is σ = 11833275324. Its totient is φ = 11818997856.

The previous prime is 11826136523. The next prime is 11826136591. The reversal of 11826136589 is 98563162811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3086691364 + 8739445225 = 55558^2 + 93485^2 .

It is a cyclic number.

It is not a de Polignac number, because 11826136589 - 2³² = 7531169293 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 (11826136489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566882 + ... + 3570195.

It is an arithmetic number, because the mean of its divisors is an integer number (2958318831).

Almost surely, 2^11826136589 is an apocalyptic number.

It is an amenable number.

11826136589 is a deficient number, since it is larger than the sum of its proper divisors (7138735).

11826136589 is an equidigital number, since it uses as much as digits as its factorization.

11826136589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138734.

The product of its digits is 622080, while the sum is 50.

The spelling of 11826136589 in words is "eleven billion, eight hundred twenty-six million, one hundred thirty-six thousand, five hundred eighty-nine".