12427982543 has 2 divisors, whose sum is σ = 12427982544. Its totient is φ = 12427982542.

The previous prime is 12427982533. The next prime is 12427982557. The reversal of 12427982543 is 34528972421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12427982543 - 2³⁰ = 11354240719 is a prime.

It is a super-2 number, since 2×12427982543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12427982533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6213991271 + 6213991272.

It is an arithmetic number, because the mean of its divisors is an integer number (6213991272).

Almost surely, 2^12427982543 is an apocalyptic number.

12427982543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12427982543 is an equidigital number, since it uses as much as digits as its factorization.

12427982543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The spelling of 12427982543 in words is "twelve billion, four hundred twenty-seven million, nine hundred eighty-two thousand, five hundred forty-three".