4491328576 has 28 divisors (see below), whose sum is σ = 10185692608. Its totient is φ = 1924854912.

The previous prime is 4491328573. The next prime is 4491328603. The reversal of 4491328576 is 6758231944.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (4491328573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012196 + ... + 5013091.

It is an arithmetic number, because the mean of its divisors is an integer number (363774736).

Almost surely, 2^4491328576 is an apocalyptic number.

It is an amenable number.

4491328576 is an abundant number, since it is smaller than the sum of its proper divisors (5694364032).

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

4491328576 is a wasteful number, since it uses less digits than its factorization.

4491328576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025306 (or 10025296 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 4491328576 is about 67017.3751798741. The cubic root of 4491328576 is about 1649.9024828807.

The spelling of 4491328576 in words is "four billion, four hundred ninety-one million, three hundred twenty-eight thousand, five hundred seventy-six".