13607656389 has 12 divisors (see below), whose sum is σ = 20186733996. Its totient is φ = 8826587712.

The previous prime is 13607656333. The next prime is 13607656423. The reversal of 13607656389 is 98365670631.

13607656389 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 76 + 563 + 8 + 9 = 666.

13607656389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8924580900 + 4683075489 = 94470^2 + 68433^2 .

It is not a de Polignac number, because 13607656389 - 2¹² = 13607652293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13607656789) 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 11 ways as a sum of consecutive naturals, for example, 20431584 + ... + 20432249.

It is an arithmetic number, because the mean of its divisors is an integer number (1682227833).

Almost surely, 2^13607656389 is an apocalyptic number.

It is an amenable number.

13607656389 is a deficient number, since it is larger than the sum of its proper divisors (6579077607).

13607656389 is a wasteful number, since it uses less digits than its factorization.

13607656389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863876 (or 40863873 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 13607656389 in words is "thirteen billion, six hundred seven million, six hundred fifty-six thousand, three hundred eighty-nine".