728708469722 has 32 divisors (see below), whose sum is σ = 1147112520192. Its totient is φ = 346775779584.

The previous prime is 728708469721. The next prime is 728708469733. The reversal of 728708469722 is 227964807827.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (728708469721) 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, 6458363 + ... + 6570225.

It is an arithmetic number, because the mean of its divisors is an integer number (35847266256).

Almost surely, 2^728708469722 is an apocalyptic number.

728708469722 is a deficient number, since it is larger than the sum of its proper divisors (418404050470).

728708469722 is a wasteful number, since it uses less digits than its factorization.

728708469722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113822.

The product of its (nonzero) digits is 37933056, while the sum is 62.

The spelling of 728708469722 in words is "seven hundred twenty-eight billion, seven hundred eight million, four hundred sixty-nine thousand, seven hundred twenty-two".