85227606374689 has 2 divisors, whose sum is σ = 85227606374690. Its totient is φ = 85227606374688.

The previous prime is 85227606374663. The next prime is 85227606374873. The reversal of 85227606374689 is 98647360672258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83637737564689 + 1589868810000 = 9145367^2 + 1260900^2 .

It is a cyclic number.

It is not a de Polignac number, because 85227606374689 - 2¹⁵ = 85227606341921 is a prime.

It is not a weakly prime, because it can be changed into another prime (85227606374609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42613803187344 + 42613803187345.

It is an arithmetic number, because the mean of its divisors is an integer number (42613803187345).

Almost surely, 2^{85227606374689} is an apocalyptic number.

It is an amenable number.

85227606374689 is a deficient number, since it is larger than the sum of its proper divisors (1).

85227606374689 is an equidigital number, since it uses as much as digits as its factorization.

85227606374689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1463132160, while the sum is 73.

The spelling of 85227606374689 in words is "eighty-five trillion, two hundred twenty-seven billion, six hundred six million, three hundred seventy-four thousand, six hundred eighty-nine".