80040080400 has 120 divisors (see below), whose sum is σ = 293022953664. Its totient is φ = 18294873600.

The previous prime is 80040080399. The next prime is 80040080401. The reversal of 80040080400 is 408004008.

It is an interprime number because it is at equal distance from previous prime (80040080399) and next prime (80040080401).

It is a tau number, because it is divible by the number of its divisors (120).

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 not an unprimeable number, because it can be changed into a prime (80040080401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4755891 + ... + 4772690.

Almost surely, 2^80040080400 is an apocalyptic number.

80040080400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80040080400 is an abundant number, since it is smaller than the sum of its proper divisors (212982873264).

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

80040080400 is a wasteful number, since it uses less digits than its factorization.

80040080400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528609 (or 9528598 counting only the distinct ones).

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

Adding to 80040080400 its reverse (408004008), we get a palindrome (80448084408).

The spelling of 80040080400 in words is "eighty billion, forty million, eighty thousand, four hundred".