128680008 has 64 divisors (see below), whose sum is σ = 349593600. Its totient is φ = 39320640.

The previous prime is 128679973. The next prime is 128680051. The reversal of 128680008 is 800086821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9585 + ... + 18687.

It is an arithmetic number, because the mean of its divisors is an integer number (5462400).

Almost surely, 2^128680008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128680008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174796800).

128680008 is an abundant number, since it is smaller than the sum of its proper divisors (220913592).

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

128680008 is a wasteful number, since it uses less digits than its factorization.

128680008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9162 (or 9158 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 128680008 is about 11343.7210826078. The cubic root of 128680008 is about 504.8592987754.

The spelling of 128680008 in words is "one hundred twenty-eight million, six hundred eighty thousand, eight".