82742669077 has 2 divisors, whose sum is σ = 82742669078. Its totient is φ = 82742669076.

The previous prime is 82742669011. The next prime is 82742669083. The reversal of 82742669077 is 77096624728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65426477796 + 17316191281 = 255786^2 + 131591^2 .

It is a cyclic number.

It is not a de Polignac number, because 82742669077 - 2²⁷ = 82608451349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82742663077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41371334538 + 41371334539.

It is an arithmetic number, because the mean of its divisors is an integer number (41371334539).

Almost surely, 2^82742669077 is an apocalyptic number.

It is an amenable number.

82742669077 is a deficient number, since it is larger than the sum of its proper divisors (1).

82742669077 is an equidigital number, since it uses as much as digits as its factorization.

82742669077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 82742669077 in words is "eighty-two billion, seven hundred forty-two million, six hundred sixty-nine thousand, seventy-seven".