12042519659 has 4 divisors (see below), whose sum is σ = 12085073016. Its totient is φ = 11999966304.

The previous prime is 12042519649. The next prime is 12042519667. The reversal of 12042519659 is 95691524021.

12042519659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12042519659 - 2⁸ = 12042519403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042519649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21276254 + ... + 21276819.

It is an arithmetic number, because the mean of its divisors is an integer number (3021268254).

Almost surely, 2^12042519659 is an apocalyptic number.

12042519659 is a deficient number, since it is larger than the sum of its proper divisors (42553357).

12042519659 is an equidigital number, since it uses as much as digits as its factorization.

12042519659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42553356.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 12042519659 in words is "twelve billion, forty-two million, five hundred nineteen thousand, six hundred fifty-nine".