489946736560 has 80 divisors (see below), whose sum is σ = 1145685100032. Its totient is φ = 194851353600.

The previous prime is 489946736557. The next prime is 489946736569. The reversal of 489946736560 is 65637649984.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (489946736569) by changing a digit.

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, 33929662 + ... + 33944098.

Almost surely, 2^489946736560 is an apocalyptic number.

489946736560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489946736560 is an abundant number, since it is smaller than the sum of its proper divisors (655738363472).

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

489946736560 is a wasteful number, since it uses less digits than its factorization.

489946736560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16862 (or 16856 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 67.

The spelling of 489946736560 in words is "four hundred eighty-nine billion, nine hundred forty-six million, seven hundred thirty-six thousand, five hundred sixty".