989484558773 has 2 divisors, whose sum is σ = 989484558774. Its totient is φ = 989484558772.

The previous prime is 989484558767. The next prime is 989484558851. The reversal of 989484558773 is 377855484989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 878780629489 + 110703929284 = 937433^2 + 332722^2 .

It is a cyclic number.

It is not a de Polignac number, because 989484558773 - 2¹² = 989484554677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 989484558694 and 989484558703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989484558173) 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, 494742279386 + 494742279387.

It is an arithmetic number, because the mean of its divisors is an integer number (494742279387).

Almost surely, 2^989484558773 is an apocalyptic number.

It is an amenable number.

989484558773 is a deficient number, since it is larger than the sum of its proper divisors (1).

989484558773 is an equidigital number, since it uses as much as digits as its factorization.

989484558773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2438553600, while the sum is 77.

The spelling of 989484558773 in words is "nine hundred eighty-nine billion, four hundred eighty-four million, five hundred fifty-eight thousand, seven hundred seventy-three".