12180504529 has 2 divisors, whose sum is σ = 12180504530. Its totient is φ = 12180504528.

The previous prime is 12180504493. The next prime is 12180504649. The reversal of 12180504529 is 92540508121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11886450625 + 294053904 = 109025^2 + 17148^2 .

It is a cyclic number.

It is not a de Polignac number, because 12180504529 - 2²⁷ = 12046286801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12180534529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6090252264 + 6090252265.

It is an arithmetic number, because the mean of its divisors is an integer number (6090252265).

Almost surely, 2^12180504529 is an apocalyptic number.

It is an amenable number.

12180504529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12180504529 is an equidigital number, since it uses as much as digits as its factorization.

12180504529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 12180504529 in words is "twelve billion, one hundred eighty million, five hundred four thousand, five hundred twenty-nine".