489636139584 has 448 divisors, whose sum is σ = 1465263820800. Its totient is φ = 143565447168.

The previous prime is 489636139583. The next prime is 489636139613. The reversal of 489636139584 is 485931636984.

It is a super-3 number, since 3×489636139584³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (489636139583) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 458031402 + ... + 458032470.

Almost surely, 2^489636139584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489636139584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732631910400).

489636139584 is an abundant number, since it is smaller than the sum of its proper divisors (975627681216).

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

489636139584 is a wasteful number, since it uses less digits than its factorization.

489636139584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1272 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 66.

The spelling of 489636139584 in words is "four hundred eighty-nine billion, six hundred thirty-six million, one hundred thirty-nine thousand, five hundred eighty-four".