13685869312 has 72 divisors (see below), whose sum is σ = 29922933600. Its totient is φ = 6218268672.

The previous prime is 13685869303. The next prime is 13685869313. The reversal of 13685869312 is 21396858631.

It is a self number, because there is not a number n which added to its sum of digits gives 13685869312.

It is not an unprimeable number, because it can be changed into a prime (13685869313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71989 + ... + 180427.

It is an arithmetic number, because the mean of its divisors is an integer number (415596300).

Almost surely, 2^13685869312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13685869312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14961466800).

13685869312 is an abundant number, since it is smaller than the sum of its proper divisors (16237064288).

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

13685869312 is a wasteful number, since it uses less digits than its factorization.

13685869312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108501 (or 108487 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The spelling of 13685869312 in words is "thirteen billion, six hundred eighty-five million, eight hundred sixty-nine thousand, three hundred twelve".