12011044647 has 8 divisors (see below), whose sum is σ = 18302544256. Its totient is φ = 6863454072.

The previous prime is 12011044621. The next prime is 12011044649. The reversal of 12011044647 is 74644011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12011044647 - 2⁶ = 12011044583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011044649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285977233 + ... + 285977274.

It is an arithmetic number, because the mean of its divisors is an integer number (2287818032).

Almost surely, 2^12011044647 is an apocalyptic number.

12011044647 is a deficient number, since it is larger than the sum of its proper divisors (6291499609).

12011044647 is an equidigital number, since it uses as much as digits as its factorization.

12011044647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571954517.

The product of its (nonzero) digits is 5376, while the sum is 30.

Adding to 12011044647 its reverse (74644011021), we get a palindrome (86655055668).

The spelling of 12011044647 in words is "twelve billion, eleven million, forty-four thousand, six hundred forty-seven".