82667728276277 has 2 divisors, whose sum is σ = 82667728276278. Its totient is φ = 82667728276276.

The previous prime is 82667728276241. The next prime is 82667728276313. The reversal of 82667728276277 is 77267282776628.

It is a balanced prime because it is at equal distance from previous prime (82667728276241) and next prime (82667728276313).

It can be written as a sum of positive squares in only one way, i.e., 43106131656676 + 39561596619601 = 6565526^2 + 6289801^2 .

It is a cyclic number.

It is not a de Polignac number, because 82667728276277 - 2²² = 82667724081973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82667728276198 and 82667728276207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82667728275277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41333864138138 + 41333864138139.

It is an arithmetic number, because the mean of its divisors is an integer number (41333864138139).

Almost surely, 2^{82667728276277} is an apocalyptic number.

It is an amenable number.

82667728276277 is a deficient number, since it is larger than the sum of its proper divisors (1).

82667728276277 is an equidigital number, since it uses as much as digits as its factorization.

82667728276277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3717439488, while the sum is 77.

The spelling of 82667728276277 in words is "eighty-two trillion, six hundred sixty-seven billion, seven hundred twenty-eight million, two hundred seventy-six thousand, two hundred seventy-seven".