82067776477 has 2 divisors, whose sum is σ = 82067776478. Its totient is φ = 82067776476.

The previous prime is 82067776457. The next prime is 82067776501. The reversal of 82067776477 is 77467776028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82067352676 + 423801 = 286474^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 82067776477 - 2³⁵ = 47708038109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82067776457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41033888238 + 41033888239.

It is an arithmetic number, because the mean of its divisors is an integer number (41033888239).

Almost surely, 2^82067776477 is an apocalyptic number.

It is an amenable number.

82067776477 is a deficient number, since it is larger than the sum of its proper divisors (1).

82067776477 is an equidigital number, since it uses as much as digits as its factorization.

82067776477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38723328, while the sum is 61.

The spelling of 82067776477 in words is "eighty-two billion, sixty-seven million, seven hundred seventy-six thousand, four hundred seventy-seven".