12387646256600 has 48 divisors (see below), whose sum is σ = 28801513824720. Its totient is φ = 4955017852800.

The previous prime is 12387646256591. The next prime is 12387646256611. The reversal of 12387646256600 is 665264678321.

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 11 ways as a sum of consecutive naturals, for example, 40443629 + ... + 40748771.

It is an arithmetic number, because the mean of its divisors is an integer number (600031538015).

Almost surely, 2^{12387646256600} is an apocalyptic number.

12387646256600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12387646256600 is an abundant number, since it is smaller than the sum of its proper divisors (16413867568120).

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

12387646256600 is a wasteful number, since it uses less digits than its factorization.

12387646256600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508140 (or 508131 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 12387646256600 in words is "twelve trillion, three hundred eighty-seven billion, six hundred forty-six million, two hundred fifty-six thousand, six hundred".