128579668 has 12 divisors (see below), whose sum is σ = 257159392. Its totient is φ = 55105560.

The previous prime is 128579663. The next prime is 128579677. The reversal of 128579668 is 866975821.

128579668 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128579663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296038 + ... + 2296093.

Almost surely, 2^128579668 is an apocalyptic number.

It is an amenable number.

128579668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128579668 is a wasteful number, since it uses less digits than its factorization.

128579668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592142 (or 4592140 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 128579668 is about 11339.2975091052. The cubic root of 128579668 is about 504.7280410001.

The spelling of 128579668 in words is "one hundred twenty-eight million, five hundred seventy-nine thousand, six hundred sixty-eight".