808784798080 has 128 divisors (see below), whose sum is σ = 2210248918080. Its totient is φ = 277230723072.

The previous prime is 808784798077. The next prime is 808784798093. The reversal of 808784798080 is 80897487808.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 808784797997 and 808784798015.

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 15 ways as a sum of consecutive naturals, for example, 20754294 + ... + 20793226.

Almost surely, 2^808784798080 is an apocalyptic number.

808784798080 is a gapful number since it is divisible by the number (80) 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 808784798080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105124459040).

808784798080 is an abundant number, since it is smaller than the sum of its proper divisors (1401464120000).

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

808784798080 is a wasteful number, since it uses less digits than its factorization.

808784798080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43596 (or 43584 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 67.

The spelling of 808784798080 in words is "eight hundred eight billion, seven hundred eighty-four million, seven hundred ninety-eight thousand, eighty".