82196768761 has 2 divisors, whose sum is σ = 82196768762. Its totient is φ = 82196768760.

The previous prime is 82196768741. The next prime is 82196768777. The reversal of 82196768761 is 16786769128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41450924025 + 40745844736 = 203595^2 + 201856^2 .

It is a cyclic number.

It is not a de Polignac number, because 82196768761 - 2¹⁵ = 82196735993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82196768761.

It is not a weakly prime, because it can be changed into another prime (82196768741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41098384380 + 41098384381.

It is an arithmetic number, because the mean of its divisors is an integer number (41098384381).

Almost surely, 2^82196768761 is an apocalyptic number.

It is an amenable number.

82196768761 is a deficient number, since it is larger than the sum of its proper divisors (1).

82196768761 is an equidigital number, since it uses as much as digits as its factorization.

82196768761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 61.

The spelling of 82196768761 in words is "eighty-two billion, one hundred ninety-six million, seven hundred sixty-eight thousand, seven hundred sixty-one".