12535044413 has 4 divisors (see below), whose sum is σ = 13080046368. Its totient is φ = 11990042460.

The previous prime is 12535044407. The next prime is 12535044437. The reversal of 12535044413 is 31444053521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31444053521 = 30781 ⋅1021541.

It is a cyclic number.

It is not a de Polignac number, because 12535044413 - 2⁴ = 12535044397 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 12535044413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535044443) by changing a digit.

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, 272500943 + ... + 272500988.

It is an arithmetic number, because the mean of its divisors is an integer number (3270011592).

Almost surely, 2^12535044413 is an apocalyptic number.

It is an amenable number.

12535044413 is a deficient number, since it is larger than the sum of its proper divisors (545001955).

12535044413 is an equidigital number, since it uses as much as digits as its factorization.

12535044413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545001954.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 12535044413 its reverse (31444053521), we get a palindrome (43979097934).

The spelling of 12535044413 in words is "twelve billion, five hundred thirty-five million, forty-four thousand, four hundred thirteen".