12683532361 has 4 divisors (see below), whose sum is σ = 12747915972. Its totient is φ = 12619148752.

The previous prime is 12683532359. The next prime is 12683532391. The reversal of 12683532361 is 16323538621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12588840000 + 94692361 = 112200^2 + 9731^2 .

It is a cyclic number.

It is not a de Polignac number, because 12683532361 - 2¹ = 12683532359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12683532391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32191510 + ... + 32191903.

It is an arithmetic number, because the mean of its divisors is an integer number (3186978993).

Almost surely, 2^12683532361 is an apocalyptic number.

It is an amenable number.

12683532361 is a deficient number, since it is larger than the sum of its proper divisors (64383611).

12683532361 is an equidigital number, since it uses as much as digits as its factorization.

12683532361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64383610.

The product of its digits is 155520, while the sum is 40.

The spelling of 12683532361 in words is "twelve billion, six hundred eighty-three million, five hundred thirty-two thousand, three hundred sixty-one".