728714742881 has 2 divisors, whose sum is σ = 728714742882. Its totient is φ = 728714742880.

The previous prime is 728714742871. The next prime is 728714742911. The reversal of 728714742881 is 188247417827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558294390481 + 170420352400 = 747191^2 + 412820^2 .

It is a cyclic number.

It is not a de Polignac number, because 728714742881 - 2²⁶ = 728647634017 is a prime.

It is a super-2 number, since 2×728714742881² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 728714742881.

It is not a weakly prime, because it can be changed into another prime (728714742841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364357371440 + 364357371441.

It is an arithmetic number, because the mean of its divisors is an integer number (364357371441).

Almost surely, 2^728714742881 is an apocalyptic number.

It is an amenable number.

728714742881 is a deficient number, since it is larger than the sum of its proper divisors (1).

728714742881 is an equidigital number, since it uses as much as digits as its factorization.

728714742881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11239424, while the sum is 59.

The spelling of 728714742881 in words is "seven hundred twenty-eight billion, seven hundred fourteen million, seven hundred forty-two thousand, eight hundred eighty-one".