13439685312 has 84 divisors (see below), whose sum is σ = 40197359280. Its totient is φ = 4285112832.

The previous prime is 13439685187. The next prime is 13439685361. The reversal of 13439685312 is 21358693431.

13439685312 is a `hidden beast` number, since 13 + 43 + 9 + 68 + 531 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493987 + ... + 520482.

Almost surely, 2^13439685312 is an apocalyptic number.

13439685312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13439685312 is an abundant number, since it is smaller than the sum of its proper divisors (26757673968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13439685312 is a wasteful number, since it uses less digits than its factorization.

13439685312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014510 (or 1014497 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 13439685312 in words is "thirteen billion, four hundred thirty-nine million, six hundred eighty-five thousand, three hundred twelve".