489683672856 has 1024 divisors, whose sum is σ = 1745694720000. Its totient is φ = 126743823360.

The previous prime is 489683672809. The next prime is 489683672867. The reversal of 489683672856 is 658276386984.

489683672856 is a `hidden beast` number, since 489 + 6 + 8 + 3 + 67 + 2 + 85 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3004194231 + ... + 3004194393.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780000).

Almost surely, 2^489683672856 is an apocalyptic number.

489683672856 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 489683672856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872847360000).

489683672856 is an abundant number, since it is smaller than the sum of its proper divisors (1256011047144).

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

489683672856 is a wasteful number, since it uses less digits than its factorization.

489683672856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 282 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 72.

The spelling of 489683672856 in words is "four hundred eighty-nine billion, six hundred eighty-three million, six hundred seventy-two thousand, eight hundred fifty-six".