80731637017 has 2 divisors, whose sum is σ = 80731637018. Its totient is φ = 80731637016.

The previous prime is 80731636903. The next prime is 80731637023. The reversal of 80731637017 is 71073613708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80712241801 + 19395216 = 284099^2 + 4404^2 .

It is a cyclic number.

It is not a de Polignac number, because 80731637017 - 2¹⁹ = 80731112729 is a prime.

It is not a weakly prime, because it can be changed into another prime (80731637057) 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 as a sum of consecutive naturals, namely, 40365818508 + 40365818509.

It is an arithmetic number, because the mean of its divisors is an integer number (40365818509).

Almost surely, 2^80731637017 is an apocalyptic number.

It is an amenable number.

80731637017 is a deficient number, since it is larger than the sum of its proper divisors (1).

80731637017 is an equidigital number, since it uses as much as digits as its factorization.

80731637017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 43.

The spelling of 80731637017 in words is "eighty billion, seven hundred thirty-one million, six hundred thirty-seven thousand, seventeen".