11456223639 has 32 divisors (see below), whose sum is σ = 17818306560. Its totient is φ = 6411405312.

The previous prime is 11456223629. The next prime is 11456223707. The reversal of 11456223639 is 93632265411.

11456223639 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 11456223639 - 2¹¹ = 11456221591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11456223639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11456223629) 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 31 ways as a sum of consecutive naturals, for example, 633282 + ... + 651120.

It is an arithmetic number, because the mean of its divisors is an integer number (556822080).

Almost surely, 2^11456223639 is an apocalyptic number.

11456223639 is a deficient number, since it is larger than the sum of its proper divisors (6362082921).

11456223639 is a wasteful number, since it uses less digits than its factorization.

11456223639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18479.

The product of its digits is 233280, while the sum is 42.

The spelling of 11456223639 in words is "eleven billion, four hundred fifty-six million, two hundred twenty-three thousand, six hundred thirty-nine".