803985900864 has 56 divisors (see below), whose sum is σ = 2184704950368. Its totient is φ = 260752181760.

The previous prime is 803985900863. The next prime is 803985900869. The reversal of 803985900864 is 468009589308.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 803985900798 and 803985900807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803985900863) by changing a digit.

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, 56579742 + ... + 56593949.

Almost surely, 2^803985900864 is an apocalyptic number.

It is an amenable number.

803985900864 is an abundant number, since it is smaller than the sum of its proper divisors (1380719049504).

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

803985900864 is a wasteful number, since it uses less digits than its factorization.

803985900864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113173743 (or 113173733 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 803985900864 in words is "eight hundred three billion, nine hundred eighty-five million, nine hundred thousand, eight hundred sixty-four".