12585783229 has 2 divisors, whose sum is σ = 12585783230. Its totient is φ = 12585783228.

The previous prime is 12585783191. The next prime is 12585783251. The reversal of 12585783229 is 92238758521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10774855204 + 1810928025 = 103802^2 + 42555^2 .

It is a cyclic number.

It is not a de Polignac number, because 12585783229 - 2⁷ = 12585783101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12585783029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6292891614 + 6292891615.

It is an arithmetic number, because the mean of its divisors is an integer number (6292891615).

Almost surely, 2^12585783229 is an apocalyptic number.

It is an amenable number.

12585783229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12585783229 is an equidigital number, since it uses as much as digits as its factorization.

12585783229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The spelling of 12585783229 in words is "twelve billion, five hundred eighty-five million, seven hundred eighty-three thousand, two hundred twenty-nine".