12522782729 has 2 divisors, whose sum is σ = 12522782730. Its totient is φ = 12522782728.

The previous prime is 12522782711. The next prime is 12522782731. The reversal of 12522782729 is 92728722521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6984446329 + 5538336400 = 83573^2 + 74420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12522782729 - 2²⁰ = 12521734153 is a prime.

Together with 12522782731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12522782749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261391364 + 6261391365.

It is an arithmetic number, because the mean of its divisors is an integer number (6261391365).

Almost surely, 2^12522782729 is an apocalyptic number.

It is an amenable number.

12522782729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12522782729 is an equidigital number, since it uses as much as digits as its factorization.

12522782729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The spelling of 12522782729 in words is "twelve billion, five hundred twenty-two million, seven hundred eighty-two thousand, seven hundred twenty-nine".