489718678 has 16 divisors (see below), whose sum is σ = 763734384. Its totient is φ = 235319040.

The previous prime is 489718633. The next prime is 489718681. The reversal of 489718678 is 876817984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39075 + ... + 50062.

It is an arithmetic number, because the mean of its divisors is an integer number (47733399).

Almost surely, 2^489718678 is an apocalyptic number.

489718678 is a deficient number, since it is larger than the sum of its proper divisors (274015706).

489718678 is a wasteful number, since it uses less digits than its factorization.

489718678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89247.

The product of its digits is 5419008, while the sum is 58.

The square root of 489718678 is about 22129.5882926005. The cubic root of 489718678 is about 788.2226120435. Note that the first 3 decimals are identical.

The spelling of 489718678 in words is "four hundred eighty-nine million, seven hundred eighteen thousand, six hundred seventy-eight".