128112192968 has 16 divisors (see below), whose sum is σ = 240215769180. Its totient is φ = 64054654528.

The previous prime is 128112192907. The next prime is 128112193007. The reversal of 128112192968 is 869291211821.

It can be written as a sum of positive squares in 2 ways, for example, as 127550408164 + 561784804 = 357142^2 + 23702^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260846 + ... + 569442.

Almost surely, 2^128112192968 is an apocalyptic number.

It is an amenable number.

128112192968 is a deficient number, since it is larger than the sum of its proper divisors (112103576212).

128112192968 is a wasteful number, since it uses less digits than its factorization.

128112192968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360496 (or 360492 counting only the distinct ones).

The product of its digits is 248832, while the sum is 50.

The spelling of 128112192968 in words is "one hundred twenty-eight billion, one hundred twelve million, one hundred ninety-two thousand, nine hundred sixty-eight".