128194185604 has 12 divisors (see below), whose sum is σ = 225132547024. Its totient is φ = 63870600744.

The previous prime is 128194185601. The next prime is 128194185629. The reversal of 128194185604 is 406581491821.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128194185601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56621742 + ... + 56624005.

Almost surely, 2^128194185604 is an apocalyptic number.

It is an amenable number.

128194185604 is a deficient number, since it is larger than the sum of its proper divisors (96938361420).

128194185604 is a wasteful number, since it uses less digits than its factorization.

128194185604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113246034 (or 113246032 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 128194185604 in words is "one hundred twenty-eight billion, one hundred ninety-four million, one hundred eighty-five thousand, six hundred four".