4389568512 has 128 divisors (see below), whose sum is σ = 13379625600. Its totient is φ = 1253965824.

The previous prime is 4389568511. The next prime is 4389568543. The reversal of 4389568512 is 2158659834.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389568511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684939 + ... + 691317.

It is an arithmetic number, because the mean of its divisors is an integer number (104528325).

Almost surely, 2^4389568512 is an apocalyptic number.

4389568512 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 4389568512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6689812800).

4389568512 is an abundant number, since it is smaller than the sum of its proper divisors (8990057088).

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

4389568512 is an frugal number, since it uses more digits than its factorization.

4389568512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419 (or 6391 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 4389568512 is about 66253.8188484256. The cubic root of 4389568512 is about 1637.3465558838.

The spelling of 4389568512 in words is "four billion, three hundred eighty-nine million, five hundred sixty-eight thousand, five hundred twelve".