82579328677 has 2 divisors, whose sum is σ = 82579328678. Its totient is φ = 82579328676.

The previous prime is 82579328659. The next prime is 82579328681. The reversal of 82579328677 is 77682397528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50750627841 + 31828700836 = 225279^2 + 178406^2 .

It is a cyclic number.

It is not a de Polignac number, because 82579328677 - 2¹¹ = 82579326629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82579328177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41289664338 + 41289664339.

It is an arithmetic number, because the mean of its divisors is an integer number (41289664339).

Almost surely, 2^82579328677 is an apocalyptic number.

It is an amenable number.

82579328677 is a deficient number, since it is larger than the sum of its proper divisors (1).

82579328677 is an equidigital number, since it uses as much as digits as its factorization.

82579328677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 64.

The spelling of 82579328677 in words is "eighty-two billion, five hundred seventy-nine million, three hundred twenty-eight thousand, six hundred seventy-seven".