489838951872 has 504 divisors, whose sum is σ = 1500287078160. Its totient is φ = 152733081600.

The previous prime is 489838951843. The next prime is 489838951897. The reversal of 489838951872 is 278159838984.

489838951872 is a `hidden beast` number, since 4 + 8 + 9 + 8 + 38 + 9 + 518 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 489838951872.

It is a congruent number.

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, 3005146863 + ... + 3005147025.

Almost surely, 2^489838951872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489838951872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750143539080).

489838951872 is an abundant number, since it is smaller than the sum of its proper divisors (1010448126288).

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

489838951872 is a wasteful number, since it uses less digits than its factorization.

489838951872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 349 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 489838951872 in words is "four hundred eighty-nine billion, eight hundred thirty-eight million, nine hundred fifty-one thousand, eight hundred seventy-two".