12440607686 has 16 divisors (see below), whose sum is σ = 20191618608. Its totient is φ = 5714604000.

The previous prime is 12440607679. The next prime is 12440607703. The reversal of 12440607686 is 68670604421.

12440607686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1128365 + ... + 1139336.

It is an arithmetic number, because the mean of its divisors is an integer number (1261976163).

Almost surely, 2^12440607686 is an apocalyptic number.

12440607686 is a deficient number, since it is larger than the sum of its proper divisors (7751010922).

12440607686 is a wasteful number, since it uses less digits than its factorization.

12440607686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267927.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 12440607686 in words is "twelve billion, four hundred forty million, six hundred seven thousand, six hundred eighty-six".