12045543445 has 24 divisors (see below), whose sum is σ = 15682694472. Its totient is φ = 8877772800.

The previous prime is 12045543439. The next prime is 12045543467. The reversal of 12045543445 is 54434554021.

12045543445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 7515849636 + 4529693809 = 86694^2 + 67303^2 .

It is not a de Polignac number, because 12045543445 - 2³ = 12045543437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426565 + ... + 453925.

It is an arithmetic number, because the mean of its divisors is an integer number (653445603).

Almost surely, 2^12045543445 is an apocalyptic number.

It is an amenable number.

12045543445 is a deficient number, since it is larger than the sum of its proper divisors (3637151027).

12045543445 is a wasteful number, since it uses less digits than its factorization.

12045543445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27913 (or 27900 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 12045543445 in words is "twelve billion, forty-five million, five hundred forty-three thousand, four hundred forty-five".