11242826789 has 4 divisors (see below), whose sum is σ = 11243069760. Its totient is φ = 11242583820.

The previous prime is 11242826779. The next prime is 11242826797. The reversal of 11242826789 is 98762824211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11242826789 - 2¹² = 11242822693 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 (11242826779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28199 + ... + 152580.

It is an arithmetic number, because the mean of its divisors is an integer number (2810767440).

Almost surely, 2^11242826789 is an apocalyptic number.

It is an amenable number.

11242826789 is a deficient number, since it is larger than the sum of its proper divisors (242971).

11242826789 is an equidigital number, since it uses as much as digits as its factorization.

11242826789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242970.

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

The spelling of 11242826789 in words is "eleven billion, two hundred forty-two million, eight hundred twenty-six thousand, seven hundred eighty-nine".