489685971016 has 96 divisors (see below), whose sum is σ = 1053547689600. Its totient is φ = 212815961600.

The previous prime is 489685971013. The next prime is 489685971059. The reversal of 489685971016 is 610179586984.

It is not an unprimeable number, because it can be changed into a prime (489685971013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97758720 + ... + 97763728.

It is an arithmetic number, because the mean of its divisors is an integer number (10974455100).

Almost surely, 2^489685971016 is an apocalyptic number.

489685971016 is a gapful number since it is divisible by the number (46) 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 489685971016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526773844800).

489685971016 is an abundant number, since it is smaller than the sum of its proper divisors (563861718584).

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

489685971016 is a wasteful number, since it uses less digits than its factorization.

489685971016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451 (or 9436 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 489685971016 in words is "four hundred eighty-nine billion, six hundred eighty-five million, nine hundred seventy-one thousand, sixteen".