80804582540 has 24 divisors (see below), whose sum is σ = 185115953232. Its totient is φ = 29383484480.

The previous prime is 80804582489. The next prime is 80804582549. The reversal of 80804582540 is 4528540808.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 80804582491 and 80804582500.

It is not an unprimeable number, because it can be changed into a prime (80804582549) 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 7 ways as a sum of consecutive naturals, for example, 183646559 + ... + 183646998.

It is an arithmetic number, because the mean of its divisors is an integer number (7713164718).

Almost surely, 2^80804582540 is an apocalyptic number.

It is an amenable number.

80804582540 is an abundant number, since it is smaller than the sum of its proper divisors (104311370692).

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

80804582540 is a wasteful number, since it uses less digits than its factorization.

80804582540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367293577 (or 367293575 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 80804582540 in words is "eighty billion, eight hundred four million, five hundred eighty-two thousand, five hundred forty".