12724477765108 has 12 divisors (see below), whose sum is σ = 22396551905700. Its totient is φ = 6325462934912.

The previous prime is 12724477765093. The next prime is 12724477765133. The reversal of 12724477765108 is 80156777442721.

It can be written as a sum of positive squares in 2 ways, for example, as 6237666091024 + 6486811674084 = 2497532^2 + 2546922^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9193986133 + ... + 9193987516.

It is an arithmetic number, because the mean of its divisors is an integer number (1866379325475).

Almost surely, 2^{12724477765108} is an apocalyptic number.

It is an amenable number.

12724477765108 is a deficient number, since it is larger than the sum of its proper divisors (9672074140592).

12724477765108 is a wasteful number, since it uses less digits than its factorization.

12724477765108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387973826 (or 18387973824 counting only the distinct ones).

The product of its (nonzero) digits is 36879360, while the sum is 61.

The spelling of 12724477765108 in words is "twelve trillion, seven hundred twenty-four billion, four hundred seventy-seven million, seven hundred sixty-five thousand, one hundred eight".