489000536621 has 2 divisors, whose sum is σ = 489000536622. Its totient is φ = 489000536620.

The previous prime is 489000536597. The next prime is 489000536653. The reversal of 489000536621 is 126635000984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311599520521 + 177401016100 = 558211^2 + 421190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489000536621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489000533621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244500268310 + 244500268311.

It is an arithmetic number, because the mean of its divisors is an integer number (244500268311).

Almost surely, 2^489000536621 is an apocalyptic number.

It is an amenable number.

489000536621 is a deficient number, since it is larger than the sum of its proper divisors (1).

489000536621 is an equidigital number, since it uses as much as digits as its factorization.

489000536621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 489000536621 in words is "four hundred eighty-nine billion, five hundred thirty-six thousand, six hundred twenty-one".