13685240012 has 24 divisors (see below), whose sum is σ = 24780969360. Its totient is φ = 6605076800.

The previous prime is 13685239937. The next prime is 13685240021. The reversal of 13685240012 is 21004258631.

13685240012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 574238 + ... + 597594.

It is an arithmetic number, because the mean of its divisors is an integer number (1032540390).

Almost surely, 2^13685240012 is an apocalyptic number.

It is an amenable number.

13685240012 is a deficient number, since it is larger than the sum of its proper divisors (11095729348).

13685240012 is a wasteful number, since it uses less digits than its factorization.

13685240012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28441 (or 28439 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 13685240012 its reverse (21004258631), we get a palindrome (34689498643).

The spelling of 13685240012 in words is "thirteen billion, six hundred eighty-five million, two hundred forty thousand, twelve".