82481385529 has 2 divisors, whose sum is σ = 82481385530. Its totient is φ = 82481385528.

The previous prime is 82481385523. The next prime is 82481385563. The reversal of 82481385529 is 92558318428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77907974400 + 4573411129 = 279120^2 + 67627^2 .

It is a cyclic number.

It is not a de Polignac number, because 82481385529 - 2⁷ = 82481385401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82481385529.

It is not a weakly prime, because it can be changed into another prime (82481385523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41240692764 + 41240692765.

It is an arithmetic number, because the mean of its divisors is an integer number (41240692765).

Almost surely, 2^82481385529 is an apocalyptic number.

It is an amenable number.

82481385529 is a deficient number, since it is larger than the sum of its proper divisors (1).

82481385529 is an equidigital number, since it uses as much as digits as its factorization.

82481385529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 55.

The spelling of 82481385529 in words is "eighty-two billion, four hundred eighty-one million, three hundred eighty-five thousand, five hundred twenty-nine".