80544263517 has 8 divisors (see below), whose sum is σ = 119324834880. Its totient is φ = 53696175660.

The previous prime is 80544263489. The next prime is 80544263521. The reversal of 80544263517 is 71536244508.

80544263517 is a `hidden beast` number, since 8 + 0 + 5 + 4 + 4 + 2 + 635 + 1 + 7 = 666.

It is not a de Polignac number, because 80544263517 - 2⁶ = 80544263453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80544263417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491560409 + ... + 1491560462.

It is an arithmetic number, because the mean of its divisors is an integer number (14915604360).

Almost surely, 2^80544263517 is an apocalyptic number.

It is an amenable number.

80544263517 is a deficient number, since it is larger than the sum of its proper divisors (38780571363).

80544263517 is a wasteful number, since it uses less digits than its factorization.

80544263517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983120880 (or 2983120874 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 80544263517 in words is "eighty billion, five hundred forty-four million, two hundred sixty-three thousand, five hundred seventeen".