82516747811 has 2 divisors, whose sum is σ = 82516747812. Its totient is φ = 82516747810.

The previous prime is 82516747793. The next prime is 82516747853. The reversal of 82516747811 is 11874761528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82516747811 - 2²² = 82512553507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82516747811.

It is not a weakly prime, because it can be changed into another prime (82516747861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41258373905 + 41258373906.

It is an arithmetic number, because the mean of its divisors is an integer number (41258373906).

Almost surely, 2^82516747811 is an apocalyptic number.

82516747811 is a deficient number, since it is larger than the sum of its proper divisors (1).

82516747811 is an equidigital number, since it uses as much as digits as its factorization.

82516747811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 50.

The spelling of 82516747811 in words is "eighty-two billion, five hundred sixteen million, seven hundred forty-seven thousand, eight hundred eleven".