1328546639108 has 24 divisors (see below), whose sum is σ = 2505863692248. Its totient is φ = 612669839616.

The previous prime is 1328546639089. The next prime is 1328546639129. The reversal of 1328546639108 is 8019366458231.

It can be written as a sum of positive squares in 4 ways, for example, as 19426226884 + 1309120412224 = 139378^2 + 1144168^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10468241 + ... + 10594392.

It is an arithmetic number, because the mean of its divisors is an integer number (104410987177).

Almost surely, 2^{1328546639108} is an apocalyptic number.

It is an amenable number.

1328546639108 is a deficient number, since it is larger than the sum of its proper divisors (1177317053140).

1328546639108 is a wasteful number, since it uses less digits than its factorization.

1328546639108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21063863 (or 21063861 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 1328546639108 in words is "one trillion, three hundred twenty-eight billion, five hundred forty-six million, six hundred thirty-nine thousand, one hundred eight".