80481716483617 has 2 divisors, whose sum is σ = 80481716483618. Its totient is φ = 80481716483616.

The previous prime is 80481716483587. The next prime is 80481716483717. The reversal of 80481716483617 is 71638461718408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75953996395281 + 4527720088336 = 8715159^2 + 2127844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80481716483617 is a prime.

It is not a weakly prime, because it can be changed into another prime (80481716483417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40240858241808 + 40240858241809.

It is an arithmetic number, because the mean of its divisors is an integer number (40240858241809).

Almost surely, 2^{80481716483617} is an apocalyptic number.

It is an amenable number.

80481716483617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80481716483617 is an equidigital number, since it uses as much as digits as its factorization.

80481716483617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43352064, while the sum is 64.

The spelling of 80481716483617 in words is "eighty trillion, four hundred eighty-one billion, seven hundred sixteen million, four hundred eighty-three thousand, six hundred seventeen".