489568559869 has 4 divisors (see below), whose sum is σ = 490955439996. Its totient is φ = 488181679744.

The previous prime is 489568559827. The next prime is 489568559897. The reversal of 489568559869 is 968955865984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372542991769 + 117025568100 = 610363^2 + 342090^2 .

It is a cyclic number.

It is not a de Polignac number, because 489568559869 - 2³⁷ = 352129606397 is a prime.

It is a super-2 number, since 2×489568559869² (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 = 489568559792 and 489568559801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489568551869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693439534 + ... + 693440239.

It is an arithmetic number, because the mean of its divisors is an integer number (122738859999).

Almost surely, 2^489568559869 is an apocalyptic number.

It is an amenable number.

489568559869 is a deficient number, since it is larger than the sum of its proper divisors (1386880127).

489568559869 is a wasteful number, since it uses less digits than its factorization.

489568559869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386880126.

The product of its digits is 6718464000, while the sum is 82.

The spelling of 489568559869 in words is "four hundred eighty-nine billion, five hundred sixty-eight million, five hundred fifty-nine thousand, eight hundred sixty-nine".