489578085013 has 2 divisors, whose sum is σ = 489578085014. Its totient is φ = 489578085012.

The previous prime is 489578084987. The next prime is 489578085037. The reversal of 489578085013 is 310580875984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319815132484 + 169762952529 = 565522^2 + 412023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489578085013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489578085053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244789042506 + 244789042507.

It is an arithmetic number, because the mean of its divisors is an integer number (244789042507).

Almost surely, 2^489578085013 is an apocalyptic number.

It is an amenable number.

489578085013 is a deficient number, since it is larger than the sum of its proper divisors (1).

489578085013 is an equidigital number, since it uses as much as digits as its factorization.

489578085013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 489578085013 in words is "four hundred eighty-nine billion, five hundred seventy-eight million, eighty-five thousand, thirteen".