128352227547817 has 16 divisors (see below), whose sum is σ = 157974636561280. Its totient is φ = 101551698110592.

The previous prime is 128352227547793. The next prime is 128352227547839. The reversal of 128352227547817 is 718745722253821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 128352227547817 - 2¹⁹ = 128352227023529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128352227547517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6454692 + ... + 17273317.

It is an arithmetic number, because the mean of its divisors is an integer number (9873414785080).

Almost surely, 2^{128352227547817} is an apocalyptic number.

It is an amenable number.

128352227547817 is a deficient number, since it is larger than the sum of its proper divisors (29622409013463).

128352227547817 is a wasteful number, since it uses less digits than its factorization.

128352227547817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23787472.

The product of its digits is 105369600, while the sum is 64.

The spelling of 128352227547817 in words is "one hundred twenty-eight trillion, three hundred fifty-two billion, two hundred twenty-seven million, five hundred forty-seven thousand, eight hundred seventeen".