82685277193 has 2 divisors, whose sum is σ = 82685277194. Its totient is φ = 82685277192.

The previous prime is 82685277179. The next prime is 82685277277. The reversal of 82685277193 is 39177258628.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78373122304 + 4312154889 = 279952^2 + 65667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82685277193 is a prime.

It is not a weakly prime, because it can be changed into another prime (82685277163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41342638596 + 41342638597.

It is an arithmetic number, because the mean of its divisors is an integer number (41342638597).

Almost surely, 2^82685277193 is an apocalyptic number.

It is an amenable number.

82685277193 is a deficient number, since it is larger than the sum of its proper divisors (1).

82685277193 is an equidigital number, since it uses as much as digits as its factorization.

82685277193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 58.

The spelling of 82685277193 in words is "eighty-two billion, six hundred eighty-five million, two hundred seventy-seven thousand, one hundred ninety-three".