728608200345 has 48 divisors (see below), whose sum is σ = 1294382598912. Its totient is φ = 378969373440.

The previous prime is 728608200343. The next prime is 728608200371. The reversal of 728608200345 is 543002806827.

728608200345 is a `hidden beast` number, since 7 + 2 + 8 + 608 + 2 + 0 + 0 + 34 + 5 = 666.

It is not a de Polignac number, because 728608200345 - 2¹ = 728608200343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 728608200345.

It is not an unprimeable number, because it can be changed into a prime (728608200343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18667 + ... + 1207296.

It is an arithmetic number, because the mean of its divisors is an integer number (26966304144).

Almost surely, 2^728608200345 is an apocalyptic number.

It is an amenable number.

728608200345 is a deficient number, since it is larger than the sum of its proper divisors (565774398567).

728608200345 is a wasteful number, since it uses less digits than its factorization.

728608200345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226302 (or 1226299 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 728608200345 in words is "seven hundred twenty-eight billion, six hundred eight million, two hundred thousand, three hundred forty-five".