12506535882 has 48 divisors (see below), whose sum is σ = 28204057440. Its totient is φ = 4000370976.

The previous prime is 12506535817. The next prime is 12506535887. The reversal of 12506535882 is 28853560521.

12506535882 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 65 + 3 + 588 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12506535887) 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 23 ways as a sum of consecutive naturals, for example, 11593 + ... + 158579.

It is an arithmetic number, because the mean of its divisors is an integer number (587584530).

Almost surely, 2^12506535882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12506535882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14102028720).

12506535882 is an abundant number, since it is smaller than the sum of its proper divisors (15697521558).

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

12506535882 is a wasteful number, since it uses less digits than its factorization.

12506535882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147187 (or 147184 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 12506535882 in words is "twelve billion, five hundred six million, five hundred thirty-five thousand, eight hundred eighty-two".