728481353875 has 16 divisors (see below), whose sum is σ = 991794252384. Its totient is φ = 529804620000.

The previous prime is 728481353851. The next prime is 728481353881. The reversal of 728481353875 is 578353184827.

It is a happy number.

It is not a de Polignac number, because 728481353875 - 2⁹ = 728481353363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264900936 + ... + 264903685.

It is an arithmetic number, because the mean of its divisors is an integer number (61987140774).

Almost surely, 2^728481353875 is an apocalyptic number.

728481353875 is a deficient number, since it is larger than the sum of its proper divisors (263312898509).

728481353875 is a wasteful number, since it uses less digits than its factorization.

728481353875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529804647 (or 529804637 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 61.

The spelling of 728481353875 in words is "seven hundred twenty-eight billion, four hundred eighty-one million, three hundred fifty-three thousand, eight hundred seventy-five".