12568743668440 has 64 divisors (see below), whose sum is σ = 28389123259200. Its totient is φ = 5008042286592.

The previous prime is 12568743668413. The next prime is 12568743668441. The reversal of 12568743668440 is 4486634786521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12568743668441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204362334 + ... + 204423826.

It is an arithmetic number, because the mean of its divisors is an integer number (443580050925).

Almost surely, 2^{12568743668440} is an apocalyptic number.

12568743668440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12568743668440 is an abundant number, since it is smaller than the sum of its proper divisors (15820379590760).

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

12568743668440 is a wasteful number, since it uses less digits than its factorization.

12568743668440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81196 (or 81192 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 64.

The spelling of 12568743668440 in words is "twelve trillion, five hundred sixty-eight billion, seven hundred forty-three million, six hundred sixty-eight thousand, four hundred forty".