728216518607 has 8 divisors (see below), whose sum is σ = 743723971776. Its totient is φ = 712709627392.

The previous prime is 728216518577. The next prime is 728216518613. The reversal of 728216518607 is 706815612827.

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 728216518607 - 2⁶ = 728216518543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728216518637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3439943 + ... + 3645495.

It is an arithmetic number, because the mean of its divisors is an integer number (92965496472).

Almost surely, 2^728216518607 is an apocalyptic number.

728216518607 is a deficient number, since it is larger than the sum of its proper divisors (15507453169).

728216518607 is a wasteful number, since it uses less digits than its factorization.

728216518607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280977.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 728216518607 in words is "seven hundred twenty-eight billion, two hundred sixteen million, five hundred eighteen thousand, six hundred seven".