80580473689 has 9 divisors (see below), whose sum is σ = 83272788351. Its totient is φ = 77972587560.

The previous prime is 80580473683. The next prime is 80580473707. The reversal of 80580473689 is 98637408508.

The square root of 80580473689 is 283867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10624455625 + 69956018064 = 103075^2 + 264492^2 .

It is not a de Polignac number, because 80580473689 - 2⁹ = 80580473177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80580473683) 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 8 ways as a sum of consecutive naturals, for example, 8795299 + ... + 8804455.

It is an arithmetic number, because the mean of its divisors is an integer number (9252532039).

Almost surely, 2^80580473689 is an apocalyptic number.

80580473689 is the 283867-th square number.

80580473689 is the 141934-th centered octagonal number.

It is an amenable number.

80580473689 is a deficient number, since it is larger than the sum of its proper divisors (2692314662).

80580473689 is an frugal number, since it uses more digits than its factorization.

80580473689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376 (or 9188 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 80580473689 in words is "eighty billion, five hundred eighty million, four hundred seventy-three thousand, six hundred eighty-nine".