12185740407752 has 12 divisors (see below), whose sum is σ = 22848281777355. Its totient is φ = 6092865267128.

The previous prime is 12185740407727. The next prime is 12185740407769. The reversal of 12185740407752 is 25770404758121.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 6092870203876 + 6092870203876 = 2468374^2 + 2468374^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2468374.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12185740407694 and 12185740407703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9256403 + ... + 10490589.

Almost surely, 2^{12185740407752} is an apocalyptic number.

It is an amenable number.

12185740407752 is a deficient number, since it is larger than the sum of its proper divisors (10662541369603).

12185740407752 is an frugal number, since it uses more digits than its factorization.

12185740407752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468380 (or 1234189 counting only the distinct ones).

The product of its (nonzero) digits is 4390400, while the sum is 53.

The spelling of 12185740407752 in words is "twelve trillion, one hundred eighty-five billion, seven hundred forty million, four hundred seven thousand, seven hundred fifty-two".