728066988068 has 48 divisors (see below), whose sum is σ = 1509209264640. Its totient is φ = 300810174336.

The previous prime is 728066988067. The next prime is 728066988073. The reversal of 728066988068 is 860889660827.

It is a super-2 number, since 2×728066988068² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 728066987989 and 728066988007.

It is not an unprimeable number, because it can be changed into a prime (728066988067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3110780 + ... + 3336627.

It is an arithmetic number, because the mean of its divisors is an integer number (31441859680).

Almost surely, 2^728066988068 is an apocalyptic number.

It is an amenable number.

728066988068 is an abundant number, since it is smaller than the sum of its proper divisors (781142276572).

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

728066988068 is a wasteful number, since it uses less digits than its factorization.

728066988068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447564 (or 6447562 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 68.

The spelling of 728066988068 in words is "seven hundred twenty-eight billion, sixty-six million, nine hundred eighty-eight thousand, sixty-eight".