728658722300 has 18 divisors (see below), whose sum is σ = 1581189427608. Its totient is φ = 291463488880.

The previous prime is 728658722261. The next prime is 728658722303. The reversal of 728658722300 is 3227856827.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728658722303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3643293512 + ... + 3643293711.

Almost surely, 2^728658722300 is an apocalyptic number.

It is an amenable number.

728658722300 is an abundant number, since it is smaller than the sum of its proper divisors (852530705308).

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

728658722300 is a wasteful number, since it uses less digits than its factorization.

728658722300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286587237 (or 7286587230 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 728658722300 in words is "seven hundred twenty-eight billion, six hundred fifty-eight million, seven hundred twenty-two thousand, three hundred".