489030778800 has 360 divisors, whose sum is σ = 1799621647200. Its totient is φ = 122551296000.

The previous prime is 489030778759. The next prime is 489030778829. The reversal of 489030778800 is 8877030984.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×489030778800² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42895501 + ... + 42906899.

It is an arithmetic number, because the mean of its divisors is an integer number (4998949020).

Almost surely, 2^489030778800 is an apocalyptic number.

489030778800 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 489030778800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899810823600).

489030778800 is an abundant number, since it is smaller than the sum of its proper divisors (1310590868400).

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

489030778800 is a wasteful number, since it uses less digits than its factorization.

489030778800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141 (or 12127 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 489030778800 in words is "four hundred eighty-nine billion, thirty million, seven hundred seventy-eight thousand, eight hundred".