489589679365 has 4 divisors (see below), whose sum is σ = 587507615244. Its totient is φ = 391671743488.

The previous prime is 489589679339. The next prime is 489589679417. The reversal of 489589679365 is 563976985984.

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 68853235201 + 420736444164 = 262399^2 + 648642^2 .

It is a cyclic number.

It is not a de Polignac number, because 489589679365 - 2⁷ = 489589679237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48958967932 + ... + 48958967941.

It is an arithmetic number, because the mean of its divisors is an integer number (146876903811).

Almost surely, 2^489589679365 is an apocalyptic number.

It is an amenable number.

489589679365 is a deficient number, since it is larger than the sum of its proper divisors (97917935879).

489589679365 is an equidigital number, since it uses as much as digits as its factorization.

489589679365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97917935878.

The product of its digits is 3527193600, while the sum is 79.

The spelling of 489589679365 in words is "four hundred eighty-nine billion, five hundred eighty-nine million, six hundred seventy-nine thousand, three hundred sixty-five".