12528317813 has 8 divisors (see below), whose sum is σ = 13678126560. Its totient is φ = 11380320880.

The previous prime is 12528317803. The next prime is 12528317821. The reversal of 12528317813 is 31871382521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12528317813 - 2²⁴ = 12511540597 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 (12528317803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438470 + ... + 466167.

It is an arithmetic number, because the mean of its divisors is an integer number (1709765820).

Almost surely, 2^12528317813 is an apocalyptic number.

It is an amenable number.

12528317813 is a deficient number, since it is larger than the sum of its proper divisors (1149808747).

12528317813 is a wasteful number, since it uses less digits than its factorization.

12528317813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905907.

The product of its digits is 80640, while the sum is 41.

The spelling of 12528317813 in words is "twelve billion, five hundred twenty-eight million, three hundred seventeen thousand, eight hundred thirteen".