128068878 has 32 divisors (see below), whose sum is σ = 299540736. Its totient is φ = 35739648.

The previous prime is 128068859. The next prime is 128068879. The reversal of 128068878 is 878860821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128068879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33651 + ... + 37262.

It is an arithmetic number, because the mean of its divisors is an integer number (9360648).

Almost surely, 2^128068878 is an apocalyptic number.

128068878 is an abundant number, since it is smaller than the sum of its proper divisors (171471858).

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

128068878 is a wasteful number, since it uses less digits than its factorization.

128068878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70968.

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 128068878 is about 11316.7520958975. The cubic root of 128068878 is about 504.0588004589.

The spelling of 128068878 in words is "one hundred twenty-eight million, sixty-eight thousand, eight hundred seventy-eight".