82860563336461 has 2 divisors, whose sum is σ = 82860563336462. Its totient is φ = 82860563336460.

The previous prime is 82860563336417. The next prime is 82860563336471. The reversal of 82860563336461 is 16463336506828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46180655053225 + 36679908283236 = 6795635^2 + 6056394^2 .

It is a cyclic number.

It is not a de Polignac number, because 82860563336461 - 2¹¹ = 82860563334413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82860563336461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82860563336471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41430281668230 + 41430281668231.

It is an arithmetic number, because the mean of its divisors is an integer number (41430281668231).

Almost surely, 2^{82860563336461} is an apocalyptic number.

It is an amenable number.

82860563336461 is a deficient number, since it is larger than the sum of its proper divisors (1).

82860563336461 is an equidigital number, since it uses as much as digits as its factorization.

82860563336461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 61.

The spelling of 82860563336461 in words is "eighty-two trillion, eight hundred sixty billion, five hundred sixty-three million, three hundred thirty-six thousand, four hundred sixty-one".