728289322271 has 8 divisors (see below), whose sum is σ = 840911383200. Its totient is φ = 617812443648.

The previous prime is 728289322217. The next prime is 728289322283. The reversal of 728289322271 is 172223982827.

728289322271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 728289322271 - 2¹⁰ = 728289321247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728289322571) 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, 536294846 + ... + 536296203.

It is an arithmetic number, because the mean of its divisors is an integer number (105113922900).

Almost surely, 2^728289322271 is an apocalyptic number.

728289322271 is a deficient number, since it is larger than the sum of its proper divisors (112622060929).

728289322271 is a wasteful number, since it uses less digits than its factorization.

728289322271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072591153.

The product of its digits is 2709504, while the sum is 53.

The spelling of 728289322271 in words is "seven hundred twenty-eight billion, two hundred eighty-nine million, three hundred twenty-two thousand, two hundred seventy-one".