12012888528 has 60 divisors (see below), whose sum is σ = 33703404228. Its totient is φ = 3994291200.

The previous prime is 12012888527. The next prime is 12012888571. The reversal of 12012888528 is 82588821021.

12012888528 is a `hidden beast` number, since 1 + 20 + 1 + 28 + 88 + 528 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5537145744 + 6475742784 = 74412^2 + 80472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012888527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46275 + ... + 161762.

Almost surely, 2^12012888528 is an apocalyptic number.

12012888528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12012888528 is an abundant number, since it is smaller than the sum of its proper divisors (21690515700).

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

12012888528 is a wasteful number, since it uses less digits than its factorization.

12012888528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208452 (or 208443 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 12012888528 in words is "twelve billion, twelve million, eight hundred eighty-eight thousand, five hundred twenty-eight".