12452493328 has 60 divisors (see below), whose sum is σ = 26754592284. Its totient is φ = 5610035200.

The previous prime is 12452493311. The next prime is 12452493329. The reversal of 12452493328 is 82339425421.

It can be written as a sum of positive squares in 2 ways, for example, as 5226133264 + 7226360064 = 72292^2 + 85008^2 .

It is not an unprimeable number, because it can be changed into a prime (12452493329) 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, 190308 + ... + 247228.

Almost surely, 2^12452493328 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 12452493328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13377296142).

12452493328 is an abundant number, since it is smaller than the sum of its proper divisors (14302098956).

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

12452493328 is a wasteful number, since it uses less digits than its factorization.

12452493328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57064 (or 57047 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 12452493328 in words is "twelve billion, four hundred fifty-two million, four hundred ninety-three thousand, three hundred twenty-eight".