11223456779 has 16 divisors (see below), whose sum is σ = 11816928000. Its totient is φ = 10644053280.

The previous prime is 11223456773. The next prime is 11223456781. The reversal of 11223456779 is 97765432211.

11223456779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11223456779 - 2³² = 6928489483 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11223456773) 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 15 ways as a sum of consecutive naturals, for example, 3213224 + ... + 3216714.

It is an arithmetic number, because the mean of its divisors is an integer number (738558000).

Almost surely, 2^11223456779 is an apocalyptic number.

11223456779 is a deficient number, since it is larger than the sum of its proper divisors (593471221).

11223456779 is a wasteful number, since it uses less digits than its factorization.

11223456779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458.

The product of its digits is 635040, while the sum is 47.

The spelling of 11223456779 in words is "eleven billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred seventy-nine".