12006637764 has 24 divisors (see below), whose sum is σ = 30562351008. Its totient is φ = 3638375040.

The previous prime is 12006637763. The next prime is 12006637789. The reversal of 12006637764 is 46773660021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12006637763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45479557 + ... + 45479820.

It is an arithmetic number, because the mean of its divisors is an integer number (1273431292).

Almost surely, 2^12006637764 is an apocalyptic number.

It is an amenable number.

12006637764 is an abundant number, since it is smaller than the sum of its proper divisors (18555713244).

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

12006637764 is a wasteful number, since it uses less digits than its factorization.

12006637764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90959395 (or 90959393 counting only the distinct ones).

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

The spelling of 12006637764 in words is "twelve billion, six million, six hundred thirty-seven thousand, seven hundred sixty-four".