12529843830 has 80 divisors (see below), whose sum is σ = 38504426400. Its totient is φ = 2863963008.

The previous prime is 12529843819. The next prime is 12529843847. The reversal of 12529843830 is 3834892521.

12529843830 is a `hidden beast` number, since 1 + 2 + 529 + 8 + 43 + 83 + 0 = 666.

It is a super-3 number, since 3×12529843830³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1099255 + ... + 1110594.

It is an arithmetic number, because the mean of its divisors is an integer number (481305330).

Almost surely, 2^12529843830 is an apocalyptic number.

12529843830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12529843830 is an abundant number, since it is smaller than the sum of its proper divisors (25974582570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12529843830 is a wasteful number, since it uses less digits than its factorization.

12529843830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209875 (or 2209866 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 12529843830 in words is "twelve billion, five hundred twenty-nine million, eight hundred forty-three thousand, eight hundred thirty".