8728170084197 has 2 divisors, whose sum is σ = 8728170084198. Its totient is φ = 8728170084196.

The previous prime is 8728170084187. The next prime is 8728170084241. The reversal of 8728170084197 is 7914800718278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8700411525316 + 27758558881 = 2949646^2 + 166609^2 .

It is a cyclic number.

It is not a de Polignac number, because 8728170084197 - 2¹⁰ = 8728170083173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8728170084187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364085042098 + 4364085042099.

It is an arithmetic number, because the mean of its divisors is an integer number (4364085042099).

Almost surely, 2^{8728170084197} is an apocalyptic number.

It is an amenable number.

8728170084197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728170084197 is an equidigital number, since it uses as much as digits as its factorization.

8728170084197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12644352, while the sum is 62.

The spelling of 8728170084197 in words is "eight trillion, seven hundred twenty-eight billion, one hundred seventy million, eighty-four thousand, one hundred ninety-seven".