12685024173720 has 128 divisors (see below), whose sum is σ = 39387703204800. Its totient is φ = 3264337864704.

The previous prime is 12685024173713. The next prime is 12685024173721. The reversal of 12685024173720 is 2737142058621.

It is a happy number.

12685024173720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12685024173720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685024173721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5783974 + ... + 7669706.

Almost surely, 2^{12685024173720} is an apocalyptic number.

12685024173720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12685024173720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19693851602400).

12685024173720 is an abundant number, since it is smaller than the sum of its proper divisors (26702679031080).

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

12685024173720 is a wasteful number, since it uses less digits than its factorization.

12685024173720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887709 (or 1887705 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 12685024173720 in words is "twelve trillion, six hundred eighty-five billion, twenty-four million, one hundred seventy-three thousand, seven hundred twenty".