8728170084401 has 2 divisors, whose sum is σ = 8728170084402. Its totient is φ = 8728170084400.

The previous prime is 8728170084353. The next prime is 8728170084457. The reversal of 8728170084401 is 1044800718278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8679151681600 + 49018402801 = 2946040^2 + 221401^2 .

It is a cyclic number.

It is not a de Polignac number, because 8728170084401 - 2¹⁸ = 8728169822257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8728170084401.

It is not a weakly prime, because it can be changed into another prime (8728176084401) 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, 4364085042200 + 4364085042201.

It is an arithmetic number, because the mean of its divisors is an integer number (4364085042201).

Almost surely, 2^{8728170084401} is an apocalyptic number.

It is an amenable number.

8728170084401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728170084401 is an equidigital number, since it uses as much as digits as its factorization.

8728170084401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 802816, while the sum is 50.

The spelling of 8728170084401 in words is "eight trillion, seven hundred twenty-eight billion, one hundred seventy million, eighty-four thousand, four hundred one".