489846709440 has 1792 divisors, whose sum is σ = 2137852569600. Its totient is φ = 105345515520.

The previous prime is 489846709433. The next prime is 489846709441. The reversal of 489846709440 is 44907648984.

489846709440 is a `hidden beast` number, since 4 + 89 + 8 + 46 + 70 + 9 + 440 = 666.

It is a super-2 number, since 2×489846709440² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489846709441) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2486531422 + ... + 2486531618.

Almost surely, 2^489846709440 is an apocalyptic number.

489846709440 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 489846709440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068926284800).

489846709440 is an abundant number, since it is smaller than the sum of its proper divisors (1648005860160).

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

489846709440 is a wasteful number, since it uses less digits than its factorization.

489846709440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 489846709440 in words is "four hundred eighty-nine billion, eight hundred forty-six million, seven hundred nine thousand, four hundred forty".