489944261721024 has 672 divisors, whose sum is σ = 1676722387691520. Its totient is φ = 135043316121600.

The previous prime is 489944261720989. The next prime is 489944261721029. The reversal of 489944261721024 is 420127162449984.

489944261721024 is a `hidden beast` number, since 4 + 8 + 9 + 9 + 4 + 4 + 2 + 617 + 2 + 1 + 0 + 2 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489944261721029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2467474932 + ... + 2467673484.

Almost surely, 2^{489944261721024} is an apocalyptic number.

489944261721024 is a gapful number since it is divisible by the number (44) 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 489944261721024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838361193845760).

489944261721024 is an abundant number, since it is smaller than the sum of its proper divisors (1186778125970496).

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

489944261721024 is a wasteful number, since it uses less digits than its factorization.

489944261721024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199369 (or 199356 counting only the distinct ones).

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

The spelling of 489944261721024 in words is "four hundred eighty-nine trillion, nine hundred forty-four billion, two hundred sixty-one million, seven hundred twenty-one thousand, twenty-four".