12400515244 has 12 divisors (see below), whose sum is σ = 23370201904. Its totient is φ = 5723314704.

The previous prime is 12400515229. The next prime is 12400515263. The reversal of 12400515244 is 44251500421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119235672 + ... + 119235775.

Almost surely, 2^12400515244 is an apocalyptic number.

It is an amenable number.

12400515244 is a deficient number, since it is larger than the sum of its proper divisors (10969686660).

12400515244 is a wasteful number, since it uses less digits than its factorization.

12400515244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238471464 (or 238471462 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 12400515244 in words is "twelve billion, four hundred million, five hundred fifteen thousand, two hundred forty-four".