728708469765 has 32 divisors (see below), whose sum is σ = 1182028308480. Its totient is φ = 383280708096.

The previous prime is 728708469763. The next prime is 728708469799. The reversal of 728708469765 is 567964807827.

It is not a de Polignac number, because 728708469765 - 2¹ = 728708469763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728708469765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728708469763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12584419 + ... + 12642191.

It is an arithmetic number, because the mean of its divisors is an integer number (36938384640).

Almost surely, 2^728708469765 is an apocalyptic number.

It is an amenable number.

728708469765 is a deficient number, since it is larger than the sum of its proper divisors (453319838715).

728708469765 is a wasteful number, since it uses less digits than its factorization.

728708469765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69373.

The product of its (nonzero) digits is 284497920, while the sum is 69.

The spelling of 728708469765 in words is "seven hundred twenty-eight billion, seven hundred eight million, four hundred sixty-nine thousand, seven hundred sixty-five".