489986845220521 has 8 divisors (see below), whose sum is σ = 534955671885600. Its totient is φ = 445088779890240.

The previous prime is 489986845220507. The next prime is 489986845220539. The reversal of 489986845220521 is 125022548689984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489986845220521 - 2¹⁵ = 489986845187753 is a prime.

It is a super-2 number, since 2×489986845220521² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489986845220501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17690319216 + ... + 17690346913.

It is an arithmetic number, because the mean of its divisors is an integer number (66869458985700).

Almost surely, 2^{489986845220521} is an apocalyptic number.

It is an amenable number.

489986845220521 is a deficient number, since it is larger than the sum of its proper divisors (44968826665079).

489986845220521 is a wasteful number, since it uses less digits than its factorization.

489986845220521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35380667399.

The product of its (nonzero) digits is 796262400, while the sum is 73.

The spelling of 489986845220521 in words is "four hundred eighty-nine trillion, nine hundred eighty-six billion, eight hundred forty-five million, two hundred twenty thousand, five hundred twenty-one".