4497981568 has 128 divisors (see below), whose sum is σ = 9956016000. Its totient is φ = 2014543872.

The previous prime is 4497981559. The next prime is 4497981617. The reversal of 4497981568 is 8651897944.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5425378 + ... + 5426206.

It is an arithmetic number, because the mean of its divisors is an integer number (77781375).

Almost surely, 2^4497981568 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 4497981568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4978008000).

4497981568 is an abundant number, since it is smaller than the sum of its proper divisors (5458034432).

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

4497981568 is a wasteful number, since it uses less digits than its factorization.

4497981568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 970 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The square root of 4497981568 is about 67066.9931337316. The cubic root of 4497981568 is about 1650.7167462127.

The spelling of 4497981568 in words is "four billion, four hundred ninety-seven million, nine hundred eighty-one thousand, five hundred sixty-eight".