489678876905 has 8 divisors (see below), whose sum is σ = 588545899584. Its totient is φ = 391122270000.

The previous prime is 489678876899. The next prime is 489678876931. The reversal of 489678876905 is 509678876984.

It is a happy number.

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

It is not a de Polignac number, because 489678876905 - 2³² = 485383909609 is a prime.

It is a Duffinian number.

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, 77600471 + ... + 77606780.

It is an arithmetic number, because the mean of its divisors is an integer number (73568237448).

Almost surely, 2^489678876905 is an apocalyptic number.

It is an amenable number.

489678876905 is a deficient number, since it is larger than the sum of its proper divisors (98867022679).

489678876905 is a wasteful number, since it uses less digits than its factorization.

489678876905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155207887.

The product of its (nonzero) digits is 1463132160, while the sum is 77.

The spelling of 489678876905 in words is "four hundred eighty-nine billion, six hundred seventy-eight million, eight hundred seventy-six thousand, nine hundred five".