85194098308237 has 2 divisors, whose sum is σ = 85194098308238. Its totient is φ = 85194098308236.

The previous prime is 85194098308199. The next prime is 85194098308321. The reversal of 85194098308237 is 73280389049158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85105901781796 + 88196526441 = 9225286^2 + 296979^2 .

It is a cyclic number.

It is not a de Polignac number, because 85194098308237 - 2¹¹ = 85194098306189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85194098308937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42597049154118 + 42597049154119.

It is an arithmetic number, because the mean of its divisors is an integer number (42597049154119).

Almost surely, 2^{85194098308237} is an apocalyptic number.

It is an amenable number.

85194098308237 is a deficient number, since it is larger than the sum of its proper divisors (1).

85194098308237 is an equidigital number, since it uses as much as digits as its factorization.

85194098308237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 85194098308237 in words is "eighty-five trillion, one hundred ninety-four billion, ninety-eight million, three hundred eight thousand, two hundred thirty-seven".