728272944013 has 2 divisors, whose sum is σ = 728272944014. Its totient is φ = 728272944012.

The previous prime is 728272943969. The next prime is 728272944043. The reversal of 728272944013 is 310449272827.

728272944013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455190403684 + 273082540329 = 674678^2 + 522573^2 .

It is a cyclic number.

It is not a de Polignac number, because 728272944013 - 2²⁹ = 727736073101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728272944043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364136472006 + 364136472007.

It is an arithmetic number, because the mean of its divisors is an integer number (364136472007).

Almost surely, 2^728272944013 is an apocalyptic number.

It is an amenable number.

728272944013 is a deficient number, since it is larger than the sum of its proper divisors (1).

728272944013 is an equidigital number, since it uses as much as digits as its factorization.

728272944013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 728272944013 in words is "seven hundred twenty-eight billion, two hundred seventy-two million, nine hundred forty-four thousand, thirteen".