804400800880 has 20 divisors (see below), whose sum is σ = 1870231862232. Its totient is φ = 321760320320.

The previous prime is 804400800871. The next prime is 804400800887. The reversal of 804400800880 is 88008004408.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804400800887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5027504926 + ... + 5027505085.

Almost surely, 2^804400800880 is an apocalyptic number.

804400800880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804400800880 is an abundant number, since it is smaller than the sum of its proper divisors (1065831061352).

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

804400800880 is a wasteful number, since it uses less digits than its factorization.

804400800880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055010024 (or 10055010018 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 804400800880 in words is "eight hundred four billion, four hundred million, eight hundred thousand, eight hundred eighty".