12592217543 has 6 divisors (see below), whose sum is σ = 13376508216. Its totient is φ = 11851498592.

The previous prime is 12592217483. The next prime is 12592217549. The reversal of 12592217543 is 34571229521.

It is a happy number.

It is not a de Polignac number, because 12592217543 - 2³⁰ = 11518475719 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 12592217543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12592217549) 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 5 ways as a sum of consecutive naturals, for example, 21785555 + ... + 21786132.

It is an arithmetic number, because the mean of its divisors is an integer number (2229418036).

Almost surely, 2^12592217543 is an apocalyptic number.

12592217543 is a deficient number, since it is larger than the sum of its proper divisors (784290673).

12592217543 is an equidigital number, since it uses as much as digits as its factorization.

12592217543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43571721 (or 43571704 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The spelling of 12592217543 in words is "twelve billion, five hundred ninety-two million, two hundred seventeen thousand, five hundred forty-three".