1328919235704 has 64 divisors (see below), whose sum is σ = 3704486457600. Its totient is φ = 441407782368.

The previous prime is 1328919235661. The next prime is 1328919235727. The reversal of 1328919235704 is 4075329198231.

1328919235704 is a `hidden beast` number, since 1 + 3 + 289 + 1 + 9 + 2 + 357 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10808844 + ... + 10931099.

It is an arithmetic number, because the mean of its divisors is an integer number (57882600900).

Almost surely, 2^{1328919235704} is an apocalyptic number.

It is an amenable number.

1328919235704 is an abundant number, since it is smaller than the sum of its proper divisors (2375567221896).

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

1328919235704 is a wasteful number, since it uses less digits than its factorization.

1328919235704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21740241 (or 21740231 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 1328919235704 in words is "one trillion, three hundred twenty-eight billion, nine hundred nineteen million, two hundred thirty-five thousand, seven hundred four".