489678876985 has 8 divisors (see below), whose sum is σ = 596385020736. Its totient is φ = 385896189360.

The previous prime is 489678876959. The next prime is 489678876989. The reversal of 489678876985 is 589678876984.

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

It is not a de Polignac number, because 489678876985 - 2¹⁵ = 489678844217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489678876989) 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, 730863661 + ... + 730864330.

It is an arithmetic number, because the mean of its divisors is an integer number (74548127592).

Almost surely, 2^489678876985 is an apocalyptic number.

It is an amenable number.

489678876985 is a deficient number, since it is larger than the sum of its proper divisors (106706143751).

489678876985 is a wasteful number, since it uses less digits than its factorization.

489678876985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461728063.

The product of its digits is 11705057280, while the sum is 85.

Subtracting 489678876985 from its reverse (589678876984), we obtain a palindrome (99999999999).

The spelling of 489678876985 in words is "four hundred eighty-nine billion, six hundred seventy-eight million, eight hundred seventy-six thousand, nine hundred eighty-five".