489393923569 has 8 divisors (see below), whose sum is σ = 518460277608. Its totient is φ = 460358511360.

The previous prime is 489393923531. The next prime is 489393923633. The reversal of 489393923569 is 965329393984.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2033559025 + 487360364544 = 45095^2 + 698112^2 .

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 489393923569 - 2⁷ = 489393923441 is a prime.

It is a super-2 number, since 2×489393923569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489393923498 and 489393923507.

It is not an unprimeable number, because it can be changed into a prime (489393983569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7702882 + ... + 7766155.

It is an arithmetic number, because the mean of its divisors is an integer number (64807534701).

Almost surely, 2^489393923569 is an apocalyptic number.

It is an amenable number.

489393923569 is a deficient number, since it is larger than the sum of its proper divisors (29066354039).

489393923569 is a wasteful number, since it uses less digits than its factorization.

489393923569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15470915.

The product of its digits is 340122240, while the sum is 70.

The spelling of 489393923569 in words is "four hundred eighty-nine billion, three hundred ninety-three million, nine hundred twenty-three thousand, five hundred sixty-nine".