12821750840 has 32 divisors (see below), whose sum is σ = 29255268960. Its totient is φ = 5056464000.

The previous prime is 12821750833. The next prime is 12821750873. The reversal of 12821750840 is 4805712821.

12821750840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12821750794 and 12821750803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254511 + ... + 2260190.

It is an arithmetic number, because the mean of its divisors is an integer number (914227155).

Almost surely, 2^12821750840 is an apocalyptic number.

12821750840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12821750840 is an abundant number, since it is smaller than the sum of its proper divisors (16433518120).

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

12821750840 is a wasteful number, since it uses less digits than its factorization.

12821750840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514783 (or 4514779 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 12821750840 in words is "twelve billion, eight hundred twenty-one million, seven hundred fifty thousand, eight hundred forty".