728615943934668 has 48 divisors (see below), whose sum is σ = 1971134920796160. Its totient is φ = 232312329949392.

The previous prime is 728615943934561. The next prime is 728615943934679. The reversal of 728615943934668 is 866439349516827.

728615943934668 is a `hidden beast` number, since 7 + 2 + 8 + 61 + 5 + 9 + 4 + 3 + 93 + 466 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146661821980 + ... + 146661826947.

It is an arithmetic number, because the mean of its divisors is an integer number (41065310849920).

Almost surely, 2^{728615943934668} is an apocalyptic number.

It is an amenable number.

728615943934668 is an abundant number, since it is smaller than the sum of its proper divisors (1242518976861492).

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

728615943934668 is a wasteful number, since it uses less digits than its factorization.

728615943934668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293323648963 (or 293323648955 counting only the distinct ones).

The product of its digits is 11287019520, while the sum is 81.

The spelling of 728615943934668 in words is "seven hundred twenty-eight trillion, six hundred fifteen billion, nine hundred forty-three million, nine hundred thirty-four thousand, six hundred sixty-eight".