489942168480 has 768 divisors, whose sum is σ = 1876060569600. Its totient is φ = 118961602560.

The previous prime is 489942168439. The next prime is 489942168481. The reversal of 489942168480 is 84861249984.

489942168480 is a `hidden beast` number, since 4 + 8 + 9 + 94 + 2 + 1 + 68 + 480 = 666.

It is not an unprimeable number, because it can be changed into a prime (489942168481) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 424927584 + ... + 424928736.

It is an arithmetic number, because the mean of its divisors is an integer number (2442787200).

Almost surely, 2^489942168480 is an apocalyptic number.

489942168480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489942168480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938030284800).

489942168480 is an abundant number, since it is smaller than the sum of its proper divisors (1386118401120).

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

489942168480 is a wasteful number, since it uses less digits than its factorization.

489942168480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 489942168480 in words is "four hundred eighty-nine billion, nine hundred forty-two million, one hundred sixty-eight thousand, four hundred eighty".