80602816577 has 2 divisors, whose sum is σ = 80602816578. Its totient is φ = 80602816576.

The previous prime is 80602816531. The next prime is 80602816579. The reversal of 80602816577 is 77561820608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69350062336 + 11252754241 = 263344^2 + 106079^2 .

It is a cyclic number.

It is not a de Polignac number, because 80602816577 - 2⁶ = 80602816513 is a prime.

Together with 80602816579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80602816579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40301408288 + 40301408289.

It is an arithmetic number, because the mean of its divisors is an integer number (40301408289).

Almost surely, 2^80602816577 is an apocalyptic number.

It is an amenable number.

80602816577 is a deficient number, since it is larger than the sum of its proper divisors (1).

80602816577 is an equidigital number, since it uses as much as digits as its factorization.

80602816577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 80602816577 in words is "eighty billion, six hundred two million, eight hundred sixteen thousand, five hundred seventy-seven".