728003637120 has 128 divisors (see below), whose sum is σ = 2457012385440. Its totient is φ = 182714630144.

The previous prime is 728003637113. The next prime is 728003637121. The reversal of 728003637120 is 21736300827.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728003637121) 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 15 ways as a sum of consecutive naturals, for example, 11119377 + ... + 11184656.

Almost surely, 2^728003637120 is an apocalyptic number.

It is an amenable number.

728003637120 is an abundant number, since it is smaller than the sum of its proper divisors (1729008748320).

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

728003637120 is a wasteful number, since it uses less digits than its factorization.

728003637120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304072 (or 22304060 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

Adding to 728003637120 its reverse (21736300827), we get a palindrome (749739937947).

The spelling of 728003637120 in words is "seven hundred twenty-eight billion, three million, six hundred thirty-seven thousand, one hundred twenty".