12727319533 has 16 divisors (see below), whose sum is σ = 13167057456. Its totient is φ = 12292853760.

The previous prime is 12727319519. The next prime is 12727319593. The reversal of 12727319533 is 33591372721.

It can be written as a sum of positive squares in 8 ways, for example, as 287709444 + 12439610089 = 16962^2 + 111533^2 .

It is a cyclic number.

It is not a de Polignac number, because 12727319533 - 2⁹ = 12727319021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12727319533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12727319593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6022285 + ... + 6024397.

It is an arithmetic number, because the mean of its divisors is an integer number (822941091).

Almost surely, 2^12727319533 is an apocalyptic number.

It is an amenable number.

12727319533 is a deficient number, since it is larger than the sum of its proper divisors (439737923).

12727319533 is a wasteful number, since it uses less digits than its factorization.

12727319533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264.

The product of its digits is 238140, while the sum is 43.

The spelling of 12727319533 in words is "twelve billion, seven hundred twenty-seven million, three hundred nineteen thousand, five hundred thirty-three".