728328808079999 has 8 divisors (see below), whose sum is σ = 832376131246080. Its totient is φ = 624281572559736.

The previous prime is 728328808079989. The next prime is 728328808080011. The reversal of 728328808079999 is 999970808823827.

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

It is a de Polignac number, because none of the positive numbers 2^k-728328808079999 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 (728328808079989) 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, 3018479 + ... + 38285360.

It is an arithmetic number, because the mean of its divisors is an integer number (104047016405760).

Almost surely, 2^{728328808079999} is an apocalyptic number.

728328808079999 is a deficient number, since it is larger than the sum of its proper divisors (104047323166081).

728328808079999 is a wasteful number, since it uses less digits than its factorization.

728328808079999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43822909.

The product of its (nonzero) digits is 15801827328, while the sum is 89.

The spelling of 728328808079999 in words is "seven hundred twenty-eight trillion, three hundred twenty-eight billion, eight hundred eight million, seventy-nine thousand, nine hundred ninety-nine".