12529028889 has 40 divisors (see below), whose sum is σ = 20182553160. Its totient is φ = 7699981824.

The previous prime is 12529028867. The next prime is 12529028933. The reversal of 12529028889 is 98882092521.

It is a happy number.

12529028889 is a `hidden beast` number, since 12 + 529 + 0 + 28 + 8 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1839123225 + 10689905664 = 42885^2 + 103392^2 .

It is not a de Polignac number, because 12529028889 - 2⁷ = 12529028761 is a prime.

It is a super-3 number, since 3×12529028889³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12529028819) 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 in 39 ways as a sum of consecutive naturals, for example, 831777 + ... + 846705.

It is an arithmetic number, because the mean of its divisors is an integer number (504563829).

Almost surely, 2^12529028889 is an apocalyptic number.

It is an amenable number.

12529028889 is a deficient number, since it is larger than the sum of its proper divisors (7653524271).

12529028889 is a wasteful number, since it uses less digits than its factorization.

12529028889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15751 (or 15742 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 12529028889 in words is "twelve billion, five hundred twenty-nine million, twenty-eight thousand, eight hundred eighty-nine".