82706743707877 has 2 divisors, whose sum is σ = 82706743707878. Its totient is φ = 82706743707876.

The previous prime is 82706743707793. The next prime is 82706743707937. The reversal of 82706743707877 is 77870734760728.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62219297702241 + 20487446005636 = 7887921^2 + 4526306^2 .

It is a cyclic number.

It is not a de Polignac number, because 82706743707877 - 2³⁹ = 82156987893989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82706143707877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41353371853938 + 41353371853939.

It is an arithmetic number, because the mean of its divisors is an integer number (41353371853939).

Almost surely, 2^{82706743707877} is an apocalyptic number.

It is an amenable number.

82706743707877 is a deficient number, since it is larger than the sum of its proper divisors (1).

82706743707877 is an equidigital number, since it uses as much as digits as its factorization.

82706743707877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1084253184, while the sum is 73.

The spelling of 82706743707877 in words is "eighty-two trillion, seven hundred six billion, seven hundred forty-three million, seven hundred seven thousand, eight hundred seventy-seven".