728852724217 has 8 divisors (see below), whose sum is σ = 771253833600. Its totient is φ = 687344269920.

The previous prime is 728852724121. The next prime is 728852724227. The reversal of 728852724217 is 712427258827.

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 728852724217 - 2²⁷ = 728718506489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728852724227) 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, 223162092 + ... + 223165357.

It is an arithmetic number, because the mean of its divisors is an integer number (96406729200).

Almost surely, 2^728852724217 is an apocalyptic number.

It is an amenable number.

728852724217 is a deficient number, since it is larger than the sum of its proper divisors (42401109383).

728852724217 is a wasteful number, since it uses less digits than its factorization.

728852724217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446327543.

The product of its digits is 7024640, while the sum is 55.

The spelling of 728852724217 in words is "seven hundred twenty-eight billion, eight hundred fifty-two million, seven hundred twenty-four thousand, two hundred seventeen".