328139656704 has 120 divisors (see below), whose sum is σ = 979689985560. Its totient is φ = 105608122368.

The previous prime is 328139656687. The next prime is 328139656709. The reversal of 328139656704 is 407656931823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328139656709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1094142 + ... + 1361405.

It is an arithmetic number, because the mean of its divisors is an integer number (8164083213).

It is a 2-persistent number, because it is pandigital, and so is 2⋅328139656704 = 656279313408, but 3⋅328139656704 = 984418970112 is not.

Almost surely, 2^328139656704 is an apocalyptic number.

It is an amenable number.

328139656704 is an abundant number, since it is smaller than the sum of its proper divisors (651550328856).

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

328139656704 is a wasteful number, since it uses less digits than its factorization.

328139656704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455600 (or 2455581 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 328139656704 in words is "three hundred twenty-eight billion, one hundred thirty-nine million, six hundred fifty-six thousand, seven hundred four".