13983638845 has 16 divisors (see below), whose sum is σ = 18800610048. Its totient is φ = 9895055040.

The previous prime is 13983638843. The next prime is 13983638849. The reversal of 13983638845 is 54883638931.

It is not a de Polignac number, because 13983638845 - 2¹ = 13983638843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13983638845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983638843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433749 + ... + 3437818.

It is an arithmetic number, because the mean of its divisors is an integer number (1175038128).

Almost surely, 2^13983638845 is an apocalyptic number.

It is an amenable number.

13983638845 is a deficient number, since it is larger than the sum of its proper divisors (4816971203).

13983638845 is a wasteful number, since it uses less digits than its factorization.

13983638845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871620.

The product of its digits is 14929920, while the sum is 58.

The spelling of 13983638845 in words is "thirteen billion, nine hundred eighty-three million, six hundred thirty-eight thousand, eight hundred forty-five".