12529841785 has 16 divisors (see below), whose sum is σ = 15193211904. Its totient is φ = 9919469952.

The previous prime is 12529841699. The next prime is 12529841827. The reversal of 12529841785 is 58714892521.

It is a cyclic number.

It is not a de Polignac number, because 12529841785 - 2⁷ = 12529841657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156904 + ... + 222886.

It is an arithmetic number, because the mean of its divisors is an integer number (949575744).

Almost surely, 2^12529841785 is an apocalyptic number.

It is an amenable number.

12529841785 is a deficient number, since it is larger than the sum of its proper divisors (2663370119).

12529841785 is a wasteful number, since it uses less digits than its factorization.

12529841785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66384.

The product of its digits is 1612800, while the sum is 52.

The spelling of 12529841785 in words is "twelve billion, five hundred twenty-nine million, eight hundred forty-one thousand, seven hundred eighty-five".