489984899846400 has 1728 divisors, whose sum is σ = 2121194554304000. Its totient is φ = 111995451187200.

The previous prime is 489984899846369. The next prime is 489984899846411. The reversal of 489984899846400 is 4648998489984.

It is a happy number.

489984899846400 is a `hidden beast` number, since 4 + 8 + 9 + 9 + 8 + 489 + 9 + 84 + 6 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (90).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4800851370 + ... + 4800953430.

Almost surely, 2^{489984899846400} is an apocalyptic number.

489984899846400 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 489984899846400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060597277152000).

489984899846400 is an abundant number, since it is smaller than the sum of its proper divisors (1631209654457600).

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

489984899846400 is an frugal number, since it uses more digits than its factorization.

489984899846400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102129 (or 102078 counting only the distinct ones).

The product of its (nonzero) digits is 41278242816, while the sum is 90.

The spelling of 489984899846400 in words is "four hundred eighty-nine trillion, nine hundred eighty-four billion, eight hundred ninety-nine million, eight hundred forty-six thousand, four hundred".