80404043520 has 72 divisors (see below), whose sum is σ = 256790426256. Its totient is φ = 21441077248.

The previous prime is 80404043519. The next prime is 80404043543. The reversal of 80404043520 is 2534040408.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10465437 + ... + 10473116.

It is an arithmetic number, because the mean of its divisors is an integer number (3566533698).

Almost surely, 2^80404043520 is an apocalyptic number.

80404043520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80404043520 is an abundant number, since it is smaller than the sum of its proper divisors (176386382736).

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

80404043520 is a wasteful number, since it uses less digits than its factorization.

80404043520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20938577 (or 20938563 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 80404043520 its reverse (2534040408), we get a palindrome (82938083928).

The spelling of 80404043520 in words is "eighty billion, four hundred four million, forty-three thousand, five hundred twenty".