11826440789 has 2 divisors, whose sum is σ = 11826440790. Its totient is φ = 11826440788.

The previous prime is 11826440783. The next prime is 11826440827. The reversal of 11826440789 is 98704462811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9731822500 + 2094618289 = 98650^2 + 45767^2 .

It is a cyclic number.

It is not a de Polignac number, because 11826440789 - 2³² = 7531473493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11826440783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5913220394 + 5913220395.

It is an arithmetic number, because the mean of its divisors is an integer number (5913220395).

Almost surely, 2^11826440789 is an apocalyptic number.

It is an amenable number.

11826440789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11826440789 is an equidigital number, since it uses as much as digits as its factorization.

11826440789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 11826440789 in words is "eleven billion, eight hundred twenty-six million, four hundred forty thousand, seven hundred eighty-nine".