489428751168 has 448 divisors, whose sum is σ = 1659110768640. Its totient is φ = 138591129600.

The previous prime is 489428751157. The next prime is 489428751169. The reversal of 489428751168 is 861157824984.

489428751168 is a `hidden beast` number, since 4 + 8 + 94 + 28 + 7 + 511 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×489428751168² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489428751169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1057081305 + ... + 1057081767.

Almost surely, 2^489428751168 is an apocalyptic number.

489428751168 is a gapful number since it is divisible by the number (48) 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 489428751168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829555384320).

489428751168 is an abundant number, since it is smaller than the sum of its proper divisors (1169682017472).

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

489428751168 is a wasteful number, since it uses less digits than its factorization.

489428751168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1067 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 489428751168 in words is "four hundred eighty-nine billion, four hundred twenty-eight million, seven hundred fifty-one thousand, one hundred sixty-eight".