326128078128 has 80 divisors (see below), whose sum is σ = 843858489600. Its totient is φ = 108533937408.

The previous prime is 326128078063. The next prime is 326128078151. The reversal of 326128078128 is 821870821623.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145787026 + ... + 145789262.

It is an arithmetic number, because the mean of its divisors is an integer number (10548231120).

Almost surely, 2^326128078128 is an apocalyptic number.

It is an amenable number.

326128078128 is an abundant number, since it is smaller than the sum of its proper divisors (517730411472).

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

326128078128 is a wasteful number, since it uses less digits than its factorization.

326128078128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5794 (or 5788 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 326128078128 in words is "three hundred twenty-six billion, one hundred twenty-eight million, seventy-eight thousand, one hundred twenty-eight".