4489920324864 has 864 divisors, whose sum is σ = 14944186333440. Its totient is φ = 1285921308672.

The previous prime is 4489920324839. The next prime is 4489920324941. The reversal of 4489920324864 is 4684230299844.

4489920324864 is a `hidden beast` number, since 4 + 48 + 99 + 20 + 3 + 2 + 486 + 4 = 666.

It is a congruent number.

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, 4107886302 + ... + 4107887394.

It is an arithmetic number, because the mean of its divisors is an integer number (17296511960).

Almost surely, 2^{4489920324864} 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 4489920324864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7472093166720).

4489920324864 is an abundant number, since it is smaller than the sum of its proper divisors (10454266008576).

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

4489920324864 is a wasteful number, since it uses less digits than its factorization.

4489920324864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 4489920324864 in words is "four trillion, four hundred eighty-nine billion, nine hundred twenty million, three hundred twenty-four thousand, eight hundred sixty-four".