12708931457808 has 480 divisors, whose sum is σ = 39023534833920. Its totient is φ = 3996022947840.

The previous prime is 12708931457801. The next prime is 12708931457839. The reversal of 12708931457808 is 80875413980721.

12708931457808 is a `hidden beast` number, since 1 + 2 + 70 + 8 + 9 + 31 + 457 + 80 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (12708931457801) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3350625960 + ... + 3350629752.

It is an arithmetic number, because the mean of its divisors is an integer number (81299030904).

Almost surely, 2^{12708931457808} is an apocalyptic number.

12708931457808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12708931457808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19511767416960).

12708931457808 is an abundant number, since it is smaller than the sum of its proper divisors (26314603376112).

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

12708931457808 is a wasteful number, since it uses less digits than its factorization.

12708931457808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349 (or 4331 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 12708931457808 in words is "twelve trillion, seven hundred eight billion, nine hundred thirty-one million, four hundred fifty-seven thousand, eight hundred eight".