4479581568 has 384 divisors, whose sum is σ = 15773149440. Its totient is φ = 1111756800.

The previous prime is 4479581539. The next prime is 4479581633. The reversal of 4479581568 is 8651859744.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4759978 + ... + 4760918.

It is an arithmetic number, because the mean of its divisors is an integer number (41075910).

Almost surely, 2^4479581568 is an apocalyptic number.

4479581568 is a gapful number since it is divisible by the number (48) 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 4479581568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7886574720).

4479581568 is an abundant number, since it is smaller than the sum of its proper divisors (11293567872).

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

4479581568 is a wasteful number, since it uses less digits than its factorization.

4479581568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 987 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The square root of 4479581568 is about 66929.6762878770. The cubic root of 4479581568 is about 1648.4627945859.

The spelling of 4479581568 in words is "four billion, four hundred seventy-nine million, five hundred eighty-one thousand, five hundred sixty-eight".