13681746908 has 12 divisors (see below), whose sum is σ = 23961526512. Its totient is φ = 6835596480.

The previous prime is 13681746901. The next prime is 13681746919. The reversal of 13681746908 is 80964718631.

It is a self number, because there is not a number n which added to its sum of digits gives 13681746908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681746901) 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 3 ways as a sum of consecutive naturals, for example, 1313408 + ... + 1323783.

It is an arithmetic number, because the mean of its divisors is an integer number (1996793876).

Almost surely, 2^13681746908 is an apocalyptic number.

It is an amenable number.

13681746908 is a deficient number, since it is larger than the sum of its proper divisors (10279779604).

13681746908 is a wasteful number, since it uses less digits than its factorization.

13681746908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638492 (or 2638490 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

Adding to 13681746908 its sum of digits (53), we get a square (13681746961 = 116969²).

The spelling of 13681746908 in words is "thirteen billion, six hundred eighty-one million, seven hundred forty-six thousand, nine hundred eight".