788320858556 has 96 divisors (see below), whose sum is σ = 1756772236800. Its totient is φ = 300612199680.

The previous prime is 788320858541. The next prime is 788320858579. The reversal of 788320858556 is 655858023887.

It is a junction number, because it is equal to n+sod(n) for n = 788320858492 and 788320858501.

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 31 ways as a sum of consecutive naturals, for example, 4066670 + ... + 4256106.

It is an arithmetic number, because the mean of its divisors is an integer number (18299710800).

Almost surely, 2^788320858556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 788320858556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878386118400).

788320858556 is an abundant number, since it is smaller than the sum of its proper divisors (968451378244).

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

788320858556 is a wasteful number, since it uses less digits than its factorization.

788320858556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189747 (or 189745 counting only the distinct ones).

The product of its (nonzero) digits is 129024000, while the sum is 65.

The spelling of 788320858556 in words is "seven hundred eighty-eight billion, three hundred twenty million, eight hundred fifty-eight thousand, five hundred fifty-six".