80504058449 has 4 divisors (see below), whose sum is σ = 80505847860. Its totient is φ = 80502269040.

The previous prime is 80504058403. The next prime is 80504058473. The reversal of 80504058449 is 94485040508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49565007424 + 30939051025 = 222632^2 + 175895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80504058449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80504958449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825434 + ... + 917795.

It is an arithmetic number, because the mean of its divisors is an integer number (20126461965).

Almost surely, 2^80504058449 is an apocalyptic number.

It is an amenable number.

80504058449 is a deficient number, since it is larger than the sum of its proper divisors (1789411).

80504058449 is a wasteful number, since it uses less digits than its factorization.

80504058449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789410.

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 80504058449 in words is "eighty billion, five hundred four million, fifty-eight thousand, four hundred forty-nine".