13963340647 has 8 divisors (see below), whose sum is σ = 14163678144. Its totient is φ = 13763248128.

The previous prime is 13963340639. The next prime is 13963340683. The reversal of 13963340647 is 74604336931.

It is a happy number.

13963340647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13963340647 - 2³ = 13963340639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13963340597 and 13963340606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13963340617) 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 7 ways as a sum of consecutive naturals, for example, 55143 + ... + 175975.

It is an arithmetic number, because the mean of its divisors is an integer number (1770459768).

Almost surely, 2^13963340647 is an apocalyptic number.

13963340647 is a deficient number, since it is larger than the sum of its proper divisors (200337497).

13963340647 is a wasteful number, since it uses less digits than its factorization.

13963340647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122489.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 13963340647 in words is "thirteen billion, nine hundred sixty-three million, three hundred forty thousand, six hundred forty-seven".