12721527743 has 2 divisors, whose sum is σ = 12721527744. Its totient is φ = 12721527742.

The previous prime is 12721527713. The next prime is 12721527757. The reversal of 12721527743 is 34772512721.

It is a strong prime.

It is an emirp because it is prime and its reverse (34772512721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12721527743 - 2²² = 12717333439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12721527743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12721527713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6360763871 + 6360763872.

It is an arithmetic number, because the mean of its divisors is an integer number (6360763872).

Almost surely, 2^12721527743 is an apocalyptic number.

12721527743 is a deficient number, since it is larger than the sum of its proper divisors (1).

12721527743 is an equidigital number, since it uses as much as digits as its factorization.

12721527743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 41.

The spelling of 12721527743 in words is "twelve billion, seven hundred twenty-one million, five hundred twenty-seven thousand, seven hundred forty-three".