11789826049 has 4 divisors (see below), whose sum is σ = 11790581764. Its totient is φ = 11789070336.

The previous prime is 11789826031. The next prime is 11789826067. The reversal of 11789826049 is 94062898711.

It is a happy number.

11789826049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (11789826031) and next prime (11789826067).

It can be written as a sum of positive squares in 2 ways, for example, as 4706920449 + 7082905600 = 68607^2 + 84160^2 .

It is a cyclic number.

It is not a de Polignac number, because 11789826049 - 2²³ = 11781437441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11789821049) 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 3 ways as a sum of consecutive naturals, for example, 353952 + ... + 385825.

It is an arithmetic number, because the mean of its divisors is an integer number (2947645441).

Almost surely, 2^11789826049 is an apocalyptic number.

It is an amenable number.

11789826049 is a deficient number, since it is larger than the sum of its proper divisors (755715).

11789826049 is an equidigital number, since it uses as much as digits as its factorization.

11789826049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755714.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 11789826049 in words is "eleven billion, seven hundred eighty-nine million, eight hundred twenty-six thousand, forty-nine".