12975412543 has 4 divisors (see below), whose sum is σ = 13009648840. Its totient is φ = 12941176248.

The previous prime is 12975412501. The next prime is 12975412547. The reversal of 12975412543 is 34521457921.

12975412543 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.

It is a cyclic number.

It is not a de Polignac number, because 12975412543 - 2²⁹ = 12438541631 is a prime.

It is a super-2 number, since 2×12975412543² (a number of 21 digits) contains 22 as substring.

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 12975412543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975412547) 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, 17117580 + ... + 17118337.

It is an arithmetic number, because the mean of its divisors is an integer number (3252412210).

Almost surely, 2^12975412543 is an apocalyptic number.

12975412543 is a deficient number, since it is larger than the sum of its proper divisors (34236297).

12975412543 is an equidigital number, since it uses as much as digits as its factorization.

12975412543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34236296.

The product of its digits is 302400, while the sum is 43.

The spelling of 12975412543 in words is "twelve billion, nine hundred seventy-five million, four hundred twelve thousand, five hundred forty-three".