1328609699999 has 8 divisors (see below), whose sum is σ = 1330256190000. Its totient is φ = 1326964144896.

The previous prime is 1328609699981. The next prime is 1328609700029. The reversal of 1328609699999 is 9999969068231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1328609699999 - 2⁸ = 1328609699743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328609699929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2632004 + ... + 3095910.

It is an arithmetic number, because the mean of its divisors is an integer number (166282023750).

Almost surely, 2^{1328609699999} is an apocalyptic number.

1328609699999 is a deficient number, since it is larger than the sum of its proper divisors (1646490001).

1328609699999 is a wasteful number, since it uses less digits than its factorization.

1328609699999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467449.

The product of its (nonzero) digits is 918330048, while the sum is 80.

The spelling of 1328609699999 in words is "one trillion, three hundred twenty-eight billion, six hundred nine million, six hundred ninety-nine thousand, nine hundred ninety-nine".