728983358565 has 128 divisors (see below), whose sum is σ = 1476035702784. Its totient is φ = 298411776000.

The previous prime is 728983358563. The next prime is 728983358641. The reversal of 728983358565 is 565853389827.

It is not a de Polignac number, because 728983358565 - 2¹ = 728983358563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728983358565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728983358563) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 69217350 + ... + 69227880.

It is an arithmetic number, because the mean of its divisors is an integer number (11531528928).

Almost surely, 2^728983358565 is an apocalyptic number.

It is an amenable number.

728983358565 is an abundant number, since it is smaller than the sum of its proper divisors (747052344219).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728983358565 is a wasteful number, since it uses less digits than its factorization.

728983358565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11451.

The product of its digits is 435456000, while the sum is 69.

The spelling of 728983358565 in words is "seven hundred twenty-eight billion, nine hundred eighty-three million, three hundred fifty-eight thousand, five hundred sixty-five".