728828973824 has 36 divisors (see below), whose sum is σ = 1662641100624. Its totient is φ = 312355273728.

The previous prime is 728828973811. The next prime is 728828973839. The reversal of 728828973824 is 428379828827.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 203354507 + ... + 203358090.

Almost surely, 2^728828973824 is an apocalyptic number.

It is an amenable number.

728828973824 is an abundant number, since it is smaller than the sum of its proper divisors (933812126800).

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

728828973824 is an equidigital number, since it uses as much as digits as its factorization.

728828973824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406712620 (or 406712606 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 68.

The spelling of 728828973824 in words is "seven hundred twenty-eight billion, eight hundred twenty-eight million, nine hundred seventy-three thousand, eight hundred twenty-four".