12819899998520 has 32 divisors (see below), whose sum is σ = 28845813333600. Its totient is φ = 5127775406208.

The previous prime is 12819899998483. The next prime is 12819899998589. The reversal of 12819899998520 is 2589999891821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4640735 + ... + 6868494.

It is an arithmetic number, because the mean of its divisors is an integer number (901431666675).

Almost surely, 2^{12819899998520} is an apocalyptic number.

12819899998520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12819899998520 is an abundant number, since it is smaller than the sum of its proper divisors (16025913335080).

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

12819899998520 is a wasteful number, since it uses less digits than its factorization.

12819899998520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11537087 (or 11537083 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 80.

The spelling of 12819899998520 in words is "twelve trillion, eight hundred nineteen billion, eight hundred ninety-nine million, nine hundred ninety-eight thousand, five hundred twenty".