804080400080 has 40 divisors (see below), whose sum is σ = 1887996720744. Its totient is φ = 318447680000.

The previous prime is 804080400077. The next prime is 804080400103. The reversal of 804080400080 is 80004080408.

It can be written as a sum of positive squares in 4 ways, for example, as 561216732736 + 242863667344 = 749144^2 + 492812^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×804080400080³ (a number of 37 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 49749371 + ... + 49765530.

Almost surely, 2^804080400080 is an apocalyptic number.

804080400080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804080400080 is an abundant number, since it is smaller than the sum of its proper divisors (1083916320664).

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

804080400080 is a wasteful number, since it uses less digits than its factorization.

804080400080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99515015 (or 99515009 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

Adding to 804080400080 its reverse (80004080408), we get a palindrome (884084480488).

The spelling of 804080400080 in words is "eight hundred four billion, eighty million, four hundred thousand, eighty".