728837683620 has 192 divisors, whose sum is σ = 2200194662400. Its totient is φ = 179743449600.

The previous prime is 728837683573. The next prime is 728837683631. The reversal of 728837683620 is 26386738827.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50088106 + ... + 50102654.

It is an arithmetic number, because the mean of its divisors is an integer number (11459347200).

Almost surely, 2^728837683620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728837683620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100097331200).

728837683620 is an abundant number, since it is smaller than the sum of its proper divisors (1471356978780).

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

728837683620 is a wasteful number, since it uses less digits than its factorization.

728837683620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15786 (or 15784 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 728837683620 in words is "seven hundred twenty-eight billion, eight hundred thirty-seven million, six hundred eighty-three thousand, six hundred twenty".