12289397724 has 36 divisors (see below), whose sum is σ = 31183007856. Its totient is φ = 4080886848.

The previous prime is 12289397717. The next prime is 12289397753. The reversal of 12289397724 is 42779398221.

It is a happy number.

12289397724 is a `hidden beast` number, since 1 + 228 + 9 + 397 + 7 + 24 = 666.

12289397724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 639529 + ... + 658464.

Almost surely, 2^12289397724 is an apocalyptic number.

It is an amenable number.

12289397724 is an abundant number, since it is smaller than the sum of its proper divisors (18893610132).

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

12289397724 is a wasteful number, since it uses less digits than its factorization.

12289397724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298266 (or 1298261 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 12289397724 in words is "twelve billion, two hundred eighty-nine million, three hundred ninety-seven thousand, seven hundred twenty-four".