13684416845 has 16 divisors (see below), whose sum is σ = 18159550272. Its totient is φ = 9815967360.

The previous prime is 13684416841. The next prime is 13684416857. The reversal of 13684416845 is 54861448631.

It is not a de Polignac number, because 13684416845 - 2² = 13684416841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13684416793 and 13684416802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13684416841) 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, 1700147 + ... + 1708176.

It is an arithmetic number, because the mean of its divisors is an integer number (1134971892).

Almost surely, 2^13684416845 is an apocalyptic number.

It is an amenable number.

13684416845 is a deficient number, since it is larger than the sum of its proper divisors (4475133427).

13684416845 is a wasteful number, since it uses less digits than its factorization.

13684416845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408412.

The product of its digits is 2211840, while the sum is 50.

The spelling of 13684416845 in words is "thirteen billion, six hundred eighty-four million, four hundred sixteen thousand, eight hundred forty-five".