12564563213 has 8 divisors (see below), whose sum is σ = 12597379200. Its totient is φ = 12531769600.

The previous prime is 12564563203. The next prime is 12564563227. The reversal of 12564563213 is 31236546521.

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

It is not a de Polignac number, because 12564563213 - 2¹⁴ = 12564546829 is a prime.

It is a super-3 number, since 3×12564563213³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564563203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995356 + ... + 2001642.

It is an arithmetic number, because the mean of its divisors is an integer number (1574672400).

Almost surely, 2^12564563213 is an apocalyptic number.

It is an amenable number.

12564563213 is a deficient number, since it is larger than the sum of its proper divisors (32815987).

12564563213 is an equidigital number, since it uses as much as digits as its factorization.

12564563213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187.

The product of its digits is 129600, while the sum is 38.

The spelling of 12564563213 in words is "twelve billion, five hundred sixty-four million, five hundred sixty-three thousand, two hundred thirteen".