489550791912 has 384 divisors, whose sum is σ = 1578590208000. Its totient is φ = 126348348672.

The previous prime is 489550791889. The next prime is 489550791931. The reversal of 489550791912 is 219197055984.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65383033 + ... + 65390519.

It is an arithmetic number, because the mean of its divisors is an integer number (4110912000).

Almost surely, 2^489550791912 is an apocalyptic number.

489550791912 is a gapful number since it is divisible by the number (42) 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 489550791912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789295104000).

489550791912 is an abundant number, since it is smaller than the sum of its proper divisors (1089039416088).

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

489550791912 is a wasteful number, since it uses less digits than its factorization.

489550791912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590 (or 7559 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 60.

The spelling of 489550791912 in words is "four hundred eighty-nine billion, five hundred fifty million, seven hundred ninety-one thousand, nine hundred twelve".