9728605493893 has 16 divisors (see below), whose sum is σ = 11440496575872. Its totient is φ = 8155946232000.

The previous prime is 9728605493879. The next prime is 9728605493917. The reversal of 9728605493893 is 3983945068279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9728605493893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728605493293) by changing a digit.

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, 32845878 + ... + 33140743.

It is an arithmetic number, because the mean of its divisors is an integer number (715031035992).

Almost surely, 2^{9728605493893} is an apocalyptic number.

It is an amenable number.

9728605493893 is a deficient number, since it is larger than the sum of its proper divisors (1711891081979).

9728605493893 is a wasteful number, since it uses less digits than its factorization.

9728605493893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65987676.

The product of its (nonzero) digits is 705438720, while the sum is 73.

The spelling of 9728605493893 in words is "nine trillion, seven hundred twenty-eight billion, six hundred five million, four hundred ninety-three thousand, eight hundred ninety-three".