12528522324 has 72 divisors (see below), whose sum is σ = 32266372320. Its totient is φ = 4097708352.

The previous prime is 12528522323. The next prime is 12528522329. The reversal of 12528522324 is 42322582521.

12528522324 is a `hidden beast` number, since 1 + 252 + 85 + 2 + 2 + 324 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528522323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190574 + ... + 1201050.

It is an arithmetic number, because the mean of its divisors is an integer number (448144060).

Almost surely, 2^12528522324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12528522324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16133186160).

12528522324 is an abundant number, since it is smaller than the sum of its proper divisors (19737849996).

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

12528522324 is a wasteful number, since it uses less digits than its factorization.

12528522324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109 (or 11104 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 12528522324 in words is "twelve billion, five hundred twenty-eight million, five hundred twenty-two thousand, three hundred twenty-four".