9728261676775 has 12 divisors (see below), whose sum is σ = 12198584307600. Its totient is φ = 7695164290880.

The previous prime is 9728261676767. The next prime is 9728261676799. The reversal of 9728261676775 is 5776761628279.

It is not a de Polignac number, because 9728261676775 - 2³ = 9728261676767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9728261676698 and 9728261676707.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2186123995 + ... + 2186128444.

It is an arithmetic number, because the mean of its divisors is an integer number (1016548692300).

Almost surely, 2^{9728261676775} is an apocalyptic number.

9728261676775 is a deficient number, since it is larger than the sum of its proper divisors (2470322630825).

9728261676775 is a wasteful number, since it uses less digits than its factorization.

9728261676775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372252538 (or 4372252533 counting only the distinct ones).

The product of its digits is 746807040, while the sum is 73.

The spelling of 9728261676775 in words is "nine trillion, seven hundred twenty-eight billion, two hundred sixty-one million, six hundred seventy-six thousand, seven hundred seventy-five".