12043407642 has 32 divisors (see below), whose sum is σ = 27876249600. Its totient is φ = 3397416048.

The previous prime is 12043407613. The next prime is 12043407647. The reversal of 12043407642 is 24670434021.

It is not an unprimeable number, because it can be changed into a prime (12043407647) 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, 1811542 + ... + 1818177.

It is an arithmetic number, because the mean of its divisors is an integer number (871132800).

Almost surely, 2^12043407642 is an apocalyptic number.

12043407642 is an abundant number, since it is smaller than the sum of its proper divisors (15832841958).

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

12043407642 is a wasteful number, since it uses less digits than its factorization.

12043407642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629810.

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 12043407642 in words is "twelve billion, forty-three million, four hundred seven thousand, six hundred forty-two".