489556497065 has 8 divisors (see below), whose sum is σ = 587505690888. Its totient is φ = 391619934720.

The previous prime is 489556497043. The next prime is 489556497161. The reversal of 489556497065 is 560794655984.

It can be written as a sum of positive squares in 4 ways, for example, as 36299013529 + 453257483536 = 190523^2 + 673244^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-489556497065 is a prime.

It is a super-2 number, since 2×489556497065² (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 = 489556496986 and 489556497004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3072392 + ... + 3227801.

It is an arithmetic number, because the mean of its divisors is an integer number (73438211361).

Almost surely, 2^489556497065 is an apocalyptic number.

It is an amenable number.

489556497065 is a deficient number, since it is larger than the sum of its proper divisors (97949193823).

489556497065 is a wasteful number, since it uses less digits than its factorization.

489556497065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315739.

The product of its (nonzero) digits is 326592000, while the sum is 68.

The spelling of 489556497065 in words is "four hundred eighty-nine billion, five hundred fifty-six million, four hundred ninety-seven thousand, sixty-five".