82690037194217 has 2 divisors, whose sum is σ = 82690037194218. Its totient is φ = 82690037194216.

The previous prime is 82690037194111. The next prime is 82690037194223. The reversal of 82690037194217 is 71249173009628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78164359605721 + 4525677588496 = 8841061^2 + 2127364^2 .

It is a cyclic number.

It is not a de Polignac number, because 82690037194217 - 2¹⁰ = 82690037193193 is a prime.

It is not a weakly prime, because it can be changed into another prime (82690037190217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41345018597108 + 41345018597109.

It is an arithmetic number, because the mean of its divisors is an integer number (41345018597109).

Almost surely, 2^{82690037194217} is an apocalyptic number.

It is an amenable number.

82690037194217 is a deficient number, since it is larger than the sum of its proper divisors (1).

82690037194217 is an equidigital number, since it uses as much as digits as its factorization.

82690037194217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 82690037194217 in words is "eighty-two trillion, six hundred ninety billion, thirty-seven million, one hundred ninety-four thousand, two hundred seventeen".