728462387747513 has 2 divisors, whose sum is σ = 728462387747514. Its totient is φ = 728462387747512.

The previous prime is 728462387747477. The next prime is 728462387747569. The reversal of 728462387747513 is 315747783264827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657880075583929 + 70582312163584 = 25649173^2 + 8401328^2 .

It is a cyclic number.

It is not a de Polignac number, because 728462387747513 - 2¹² = 728462387743417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (728462387747573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364231193873756 + 364231193873757.

It is an arithmetic number, because the mean of its divisors is an integer number (364231193873757).

Almost surely, 2^{728462387747513} is an apocalyptic number.

It is an amenable number.

728462387747513 is a deficient number, since it is larger than the sum of its proper divisors (1).

728462387747513 is an equidigital number, since it uses as much as digits as its factorization.

728462387747513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2655313920, while the sum is 74.

The spelling of 728462387747513 in words is "seven hundred twenty-eight trillion, four hundred sixty-two billion, three hundred eighty-seven million, seven hundred forty-seven thousand, five hundred thirteen".