489196420640 has 96 divisors (see below), whose sum is σ = 1170871511040. Its totient is φ = 193130348544.

The previous prime is 489196420637. The next prime is 489196420667. The reversal of 489196420640 is 46024691984.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859391 + ... + 3984129.

It is an arithmetic number, because the mean of its divisors is an integer number (12196578240).

Almost surely, 2^489196420640 is an apocalyptic number.

489196420640 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 489196420640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585435755520).

489196420640 is an abundant number, since it is smaller than the sum of its proper divisors (681675090400).

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

489196420640 is a wasteful number, since it uses less digits than its factorization.

489196420640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125074 (or 125066 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 489196420640 in words is "four hundred eighty-nine billion, one hundred ninety-six million, four hundred twenty thousand, six hundred forty".