804400000080 has 80 divisors (see below), whose sum is σ = 2501762835264. Its totient is φ = 213807928320.

The previous prime is 804400000051. The next prime is 804400000099. The reversal of 804400000080 is 80000004408.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×804400000080³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5385061 + ... + 5532420.

Almost surely, 2^804400000080 is an apocalyptic number.

804400000080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804400000080 is an abundant number, since it is smaller than the sum of its proper divisors (1697362835184).

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

804400000080 is a wasteful number, since it uses less digits than its factorization.

804400000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10917804 (or 10917798 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 804400000080 its reverse (80000004408), we get a palindrome (884400004488).

The spelling of 804400000080 in words is "eight hundred four billion, four hundred million, eighty", and thus it is an aban number.