128444342170 has 8 divisors (see below), whose sum is σ = 231199815924. Its totient is φ = 51377736864.

The previous prime is 128444342161. The next prime is 128444342177. The reversal of 128444342170 is 71243444821.

It can be written as a sum of positive squares in 2 ways, for example, as 128444108881 + 233289 = 358391^2 + 483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (128444342177) 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 in 3 ways as a sum of consecutive naturals, for example, 6422217099 + ... + 6422217118.

Almost surely, 2^128444342170 is an apocalyptic number.

128444342170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128444342170 is a deficient number, since it is larger than the sum of its proper divisors (102755473754).

128444342170 is a wasteful number, since it uses less digits than its factorization.

128444342170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844434224.

The product of its (nonzero) digits is 172032, while the sum is 40.

Adding to 128444342170 its reverse (71243444821), we get a palindrome (199687786991).

The spelling of 128444342170 in words is "one hundred twenty-eight billion, four hundred forty-four million, three hundred forty-two thousand, one hundred seventy".