12045345452 has 48 divisors (see below), whose sum is σ = 24436000512. Its totient is φ = 5088578880.

The previous prime is 12045345451. The next prime is 12045345497. The reversal of 12045345452 is 25454354021.

It is not an unprimeable number, because it can be changed into a prime (12045345451) 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 15 ways as a sum of consecutive naturals, for example, 1065743 + ... + 1076985.

It is an arithmetic number, because the mean of its divisors is an integer number (509083344).

Almost surely, 2^12045345452 is an apocalyptic number.

It is an amenable number.

12045345452 is an abundant number, since it is smaller than the sum of its proper divisors (12390655060).

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

12045345452 is a wasteful number, since it uses less digits than its factorization.

12045345452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11798 (or 11796 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 12045345452 its reverse (25454354021), we get a palindrome (37499699473).

The spelling of 12045345452 in words is "twelve billion, forty-five million, three hundred forty-five thousand, four hundred fifty-two".