804589553991 has 16 divisors (see below), whose sum is σ = 1109801779200. Its totient is φ = 517885951968.

The previous prime is 804589553939. The next prime is 804589554001. The reversal of 804589553991 is 199355985408.

804589553991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 804589553991 - 2¹⁰ = 804589552967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804589553921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8167930 + ... + 8265848.

It is an arithmetic number, because the mean of its divisors is an integer number (69362611200).

Almost surely, 2^804589553991 is an apocalyptic number.

804589553991 is a deficient number, since it is larger than the sum of its proper divisors (305212225209).

804589553991 is a wasteful number, since it uses less digits than its factorization.

804589553991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192398.

The product of its (nonzero) digits is 69984000, while the sum is 66.

The spelling of 804589553991 in words is "eight hundred four billion, five hundred eighty-nine million, five hundred fifty-three thousand, nine hundred ninety-one".