12205887736 has 32 divisors (see below), whose sum is σ = 27532080000. Its totient is φ = 4955773536.

The previous prime is 12205887677. The next prime is 12205887769. The reversal of 12205887736 is 63778850221.

12205887736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12205887736.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5734786 + ... + 5736913.

It is an arithmetic number, because the mean of its divisors is an integer number (860377500).

Almost surely, 2^12205887736 is an apocalyptic number.

It is an amenable number.

12205887736 is an abundant number, since it is smaller than the sum of its proper divisors (15326192264).

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

12205887736 is a wasteful number, since it uses less digits than its factorization.

12205887736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11471731 (or 11471727 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 12205887736 in words is "twelve billion, two hundred five million, eight hundred eighty-seven thousand, seven hundred thirty-six".