1328529675648 has 64 divisors (see below), whose sum is σ = 4033036523520. Its totient is φ = 379579906560.

The previous prime is 1328529675647. The next prime is 1328529675677. The reversal of 1328529675648 is 8465769258231.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328529675647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247119648 + ... + 247125023.

It is an arithmetic number, because the mean of its divisors is an integer number (63016195680).

Almost surely, 2^{1328529675648} is an apocalyptic number.

It is an amenable number.

1328529675648 is an abundant number, since it is smaller than the sum of its proper divisors (2704506847872).

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

1328529675648 is an equidigital number, since it uses as much as digits as its factorization.

1328529675648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494244695 (or 494244683 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 66.

The spelling of 1328529675648 in words is "one trillion, three hundred twenty-eight billion, five hundred twenty-nine million, six hundred seventy-five thousand, six hundred forty-eight".