12571018541 has 4 divisors (see below), whose sum is σ = 12636835584. Its totient is φ = 12505201500.

The previous prime is 12571018517. The next prime is 12571018553. The reversal of 12571018541 is 14581017521.

12571018541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12571018541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12571018561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32908235 + ... + 32908616.

It is an arithmetic number, because the mean of its divisors is an integer number (3159208896).

Almost surely, 2^12571018541 is an apocalyptic number.

It is an amenable number.

12571018541 is a deficient number, since it is larger than the sum of its proper divisors (65817043).

12571018541 is an equidigital number, since it uses as much as digits as its factorization.

12571018541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65817042.

The product of its (nonzero) digits is 11200, while the sum is 35.

The spelling of 12571018541 in words is "twelve billion, five hundred seventy-one million, eighteen thousand, five hundred forty-one".