728117656848 has 40 divisors (see below), whose sum is σ = 2089967349600. Its totient is φ = 242705885472.

The previous prime is 728117656837. The next prime is 728117656897. The reversal of 728117656848 is 848656711827.

It is a happy number.

728117656848 is a `hidden beast` number, since 7 + 28 + 1 + 1 + 7 + 6 + 568 + 48 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842728338 + ... + 842729201.

It is an arithmetic number, because the mean of its divisors is an integer number (52249183740).

Almost surely, 2^728117656848 is an apocalyptic number.

It is an amenable number.

728117656848 is an abundant number, since it is smaller than the sum of its proper divisors (1361849692752).

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

728117656848 is a wasteful number, since it uses less digits than its factorization.

728117656848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685457556 (or 1685457544 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 63.

The spelling of 728117656848 in words is "seven hundred twenty-eight billion, one hundred seventeen million, six hundred fifty-six thousand, eight hundred forty-eight".