13638664107 has 6 divisors (see below), whose sum is σ = 19700292612. Its totient is φ = 9092442732.

The previous prime is 13638664079. The next prime is 13638664111. The reversal of 13638664107 is 70146683631.

13638664107 is a `hidden beast` number, since 1 + 3 + 638 + 6 + 6 + 4 + 1 + 0 + 7 = 666.

It is not a de Polignac number, because 13638664107 - 2¹⁴ = 13638647723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13638664187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757703553 + ... + 757703570.

It is an arithmetic number, because the mean of its divisors is an integer number (3283382102).

Almost surely, 2^13638664107 is an apocalyptic number.

13638664107 is a deficient number, since it is larger than the sum of its proper divisors (6061628505).

13638664107 is a wasteful number, since it uses less digits than its factorization.

13638664107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515407129 (or 1515407126 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 13638664107 in words is "thirteen billion, six hundred thirty-eight million, six hundred sixty-four thousand, one hundred seven".