489891919104 has 1440 divisors, whose sum is σ = 1911794734080. Its totient is φ = 121899810816.

The previous prime is 489891919103. The next prime is 489891919109. The reversal of 489891919104 is 401919198984.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489891919103) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11392835307 + ... + 11392835349.

It is an arithmetic number, because the mean of its divisors is an integer number (1327635232).

Almost surely, 2^489891919104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489891919104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955897367040).

489891919104 is an abundant number, since it is smaller than the sum of its proper divisors (1421902814976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489891919104 is an frugal number, since it uses more digits than its factorization.

489891919104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 63.

The spelling of 489891919104 in words is "four hundred eighty-nine billion, eight hundred ninety-one million, nine hundred nineteen thousand, one hundred four".