4681728556559 has 2 divisors, whose sum is σ = 4681728556560. Its totient is φ = 4681728556558.

The previous prime is 4681728556511. The next prime is 4681728556597. The reversal of 4681728556559 is 9556558271864.

4681728556559 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4681728556559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4681728556492 and 4681728556501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4681728556459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2340864278279 + 2340864278280.

It is an arithmetic number, because the mean of its divisors is an integer number (2340864278280).

Almost surely, 2^{4681728556559} is an apocalyptic number.

4681728556559 is a deficient number, since it is larger than the sum of its proper divisors (1).

4681728556559 is an equidigital number, since it uses as much as digits as its factorization.

4681728556559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760000, while the sum is 71.

The spelling of 4681728556559 in words is "four trillion, six hundred eighty-one billion, seven hundred twenty-eight million, five hundred fifty-six thousand, five hundred fifty-nine".