12536325427 has 4 divisors (see below), whose sum is σ = 12536727760. Its totient is φ = 12535923096.

The previous prime is 12536325401. The next prime is 12536325437. The reversal of 12536325427 is 72452363521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12536325427 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 12536325427.

It is not an unprimeable number, because it can be changed into a prime (12536325437) 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, 150108 + ... + 218185.

It is an arithmetic number, because the mean of its divisors is an integer number (3134181940).

Almost surely, 2^12536325427 is an apocalyptic number.

12536325427 is a deficient number, since it is larger than the sum of its proper divisors (402333).

12536325427 is an equidigital number, since it uses as much as digits as its factorization.

12536325427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402332.

The product of its digits is 302400, while the sum is 40.

Adding to 12536325427 its reverse (72452363521), we get a palindrome (84988688948).

The spelling of 12536325427 in words is "twelve billion, five hundred thirty-six million, three hundred twenty-five thousand, four hundred twenty-seven".