12727381652 has 12 divisors (see below), whose sum is σ = 22435494900. Its totient is φ = 6317240256.

The previous prime is 12727381649. The next prime is 12727381691. The reversal of 12727381652 is 25618372721.

It can be written as a sum of positive squares in 2 ways, for example, as 5306248336 + 7421133316 = 72844^2 + 86146^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11612027 + ... + 11613122.

It is an arithmetic number, because the mean of its divisors is an integer number (1869624575).

Almost surely, 2^12727381652 is an apocalyptic number.

It is an amenable number.

12727381652 is a deficient number, since it is larger than the sum of its proper divisors (9708113248).

12727381652 is a wasteful number, since it uses less digits than its factorization.

12727381652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23225290 (or 23225288 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The spelling of 12727381652 in words is "twelve billion, seven hundred twenty-seven million, three hundred eighty-one thousand, six hundred fifty-two".