82560958481 has 2 divisors, whose sum is σ = 82560958482. Its totient is φ = 82560958480.

The previous prime is 82560958373. The next prime is 82560958489. The reversal of 82560958481 is 18485906528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55989024400 + 26571934081 = 236620^2 + 163009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82560958481 is a prime.

It is a super-2 number, since 2×82560958481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82560958489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41280479240 + 41280479241.

It is an arithmetic number, because the mean of its divisors is an integer number (41280479241).

Almost surely, 2^82560958481 is an apocalyptic number.

It is an amenable number.

82560958481 is a deficient number, since it is larger than the sum of its proper divisors (1).

82560958481 is an equidigital number, since it uses as much as digits as its factorization.

82560958481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 82560958481 in words is "eighty-two billion, five hundred sixty million, nine hundred fifty-eight thousand, four hundred eighty-one".