82259666779 has 2 divisors, whose sum is σ = 82259666780. Its totient is φ = 82259666778.

The previous prime is 82259666777. The next prime is 82259666813. The reversal of 82259666779 is 97766695228.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82259666779 - 2¹ = 82259666777 is a prime.

Together with 82259666777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82259666777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41129833389 + 41129833390.

It is an arithmetic number, because the mean of its divisors is an integer number (41129833390).

Almost surely, 2^82259666779 is an apocalyptic number.

82259666779 is a deficient number, since it is larger than the sum of its proper divisors (1).

82259666779 is an equidigital number, since it uses as much as digits as its factorization.

82259666779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 67.

The spelling of 82259666779 in words is "eighty-two billion, two hundred fifty-nine million, six hundred sixty-six thousand, seven hundred seventy-nine".