12006747636 has 36 divisors (see below), whose sum is σ = 30336580512. Its totient is φ = 3694383264.

The previous prime is 12006747631. The next prime is 12006747647. The reversal of 12006747636 is 63674760021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006747631) 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 11 ways as a sum of consecutive naturals, for example, 2958216 + ... + 2962271.

It is an arithmetic number, because the mean of its divisors is an integer number (842682792).

Almost surely, 2^12006747636 is an apocalyptic number.

It is an amenable number.

12006747636 is an abundant number, since it is smaller than the sum of its proper divisors (18329832876).

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

12006747636 is a wasteful number, since it uses less digits than its factorization.

12006747636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920520 (or 5920505 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 12006747636 in words is "twelve billion, six million, seven hundred forty-seven thousand, six hundred thirty-six".