128328650670 has 128 divisors (see below), whose sum is σ = 346980920832. Its totient is φ = 30101414400.

The previous prime is 128328650629. The next prime is 128328650729. The reversal of 128328650670 is 76056823821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2180977 + ... + 2239043.

It is an arithmetic number, because the mean of its divisors is an integer number (2710788444).

Almost surely, 2^128328650670 is an apocalyptic number.

128328650670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128328650670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173490460416).

128328650670 is an abundant number, since it is smaller than the sum of its proper divisors (218652270162).

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

128328650670 is a wasteful number, since it uses less digits than its factorization.

128328650670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58306.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 128328650670 in words is "one hundred twenty-eight billion, three hundred twenty-eight million, six hundred fifty thousand, six hundred seventy".