12388656806 has 32 divisors (see below), whose sum is σ = 20060796960. Its totient is φ = 5716480000.

The previous prime is 12388656739. The next prime is 12388656859. The reversal of 12388656806 is 60865688321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796706 + ... + 812106.

It is an arithmetic number, because the mean of its divisors is an integer number (626899905).

Almost surely, 2^12388656806 is an apocalyptic number.

12388656806 is a deficient number, since it is larger than the sum of its proper divisors (7672140154).

12388656806 is a wasteful number, since it uses less digits than its factorization.

12388656806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 12388656806 in words is "twelve billion, three hundred eighty-eight million, six hundred fifty-six thousand, eight hundred six".