805994319808 has 168 divisors, whose sum is σ = 1732442576256. Its totient is φ = 371625830400.

The previous prime is 805994319797. The next prime is 805994319827. The reversal of 805994319808 is 808913499508.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 805994319808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307512738 + ... + 307515358.

It is an arithmetic number, because the mean of its divisors is an integer number (10312158192).

Almost surely, 2^805994319808 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 805994319808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866221288128).

805994319808 is an abundant number, since it is smaller than the sum of its proper divisors (926448256448).

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

805994319808 is a wasteful number, since it uses less digits than its factorization.

805994319808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 805994319808 in words is "eight hundred five billion, nine hundred ninety-four million, three hundred nineteen thousand, eight hundred eight".