13659856422 has 16 divisors (see below), whose sum is σ = 28926754992. Its totient is φ = 4285445120.

The previous prime is 13659856417. The next prime is 13659856487. The reversal of 13659856422 is 22465895631.

It is a happy number.

13659856422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66959979 + ... + 66960182.

It is an arithmetic number, because the mean of its divisors is an integer number (1807922187).

Almost surely, 2^13659856422 is an apocalyptic number.

13659856422 is an abundant number, since it is smaller than the sum of its proper divisors (15266898570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13659856422 is a wasteful number, since it uses less digits than its factorization.

13659856422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133920183.

The product of its digits is 3110400, while the sum is 51.

The spelling of 13659856422 in words is "thirteen billion, six hundred fifty-nine million, eight hundred fifty-six thousand, four hundred twenty-two".