728708469733 has 2 divisors, whose sum is σ = 728708469734. Its totient is φ = 728708469732.

The previous prime is 728708469721. The next prime is 728708469737. The reversal of 728708469733 is 337964807827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708960632004 + 19747837729 = 841998^2 + 140527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728708469733 is a prime.

It is a super-2 number, since 2×728708469733² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728708469737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364354234866 + 364354234867.

It is an arithmetic number, because the mean of its divisors is an integer number (364354234867).

Almost surely, 2^728708469733 is an apocalyptic number.

It is an amenable number.

728708469733 is a deficient number, since it is larger than the sum of its proper divisors (1).

728708469733 is an equidigital number, since it uses as much as digits as its factorization.

728708469733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 728708469733 in words is "seven hundred twenty-eight billion, seven hundred eight million, four hundred sixty-nine thousand, seven hundred thirty-three".