12825548685 has 24 divisors (see below), whose sum is σ = 22353788184. Its totient is φ = 6802496640.

The previous prime is 12825548669. The next prime is 12825548713. The reversal of 12825548685 is 58684552821.

12825548685 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 554 + 8 + 6 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 967645449 + 11857903236 = 31107^2 + 108894^2 .

It is not a de Polignac number, because 12825548685 - 2⁴ = 12825548669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779182 + ... + 795471.

It is an arithmetic number, because the mean of its divisors is an integer number (931407841).

Almost surely, 2^12825548685 is an apocalyptic number.

12825548685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12825548685 is a deficient number, since it is larger than the sum of its proper divisors (9528239499).

12825548685 is a wasteful number, since it uses less digits than its factorization.

12825548685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574845 (or 1574842 counting only the distinct ones).

The product of its digits is 6144000, while the sum is 54.

The spelling of 12825548685 in words is "twelve billion, eight hundred twenty-five million, five hundred forty-eight thousand, six hundred eighty-five".