12811705800 has 48 divisors (see below), whose sum is σ = 39716289840. Its totient is φ = 3416454720.

The previous prime is 12811705799. The next prime is 12811705813. The reversal of 12811705800 is 850711821.

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, 10675822 + ... + 10677021.

It is an arithmetic number, because the mean of its divisors is an integer number (827422705).

Almost surely, 2^12811705800 is an apocalyptic number.

12811705800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12811705800 is an abundant number, since it is smaller than the sum of its proper divisors (26904584040).

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

12811705800 is a wasteful number, since it uses less digits than its factorization.

12811705800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352862 (or 21352853 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 33.

The spelling of 12811705800 in words is "twelve billion, eight hundred eleven million, seven hundred five thousand, eight hundred".