4408542785 has 12 divisors (see below), whose sum is σ = 5437103868. Its totient is φ = 3431509056.

The previous prime is 4408542769. The next prime is 4408542847. The reversal of 4408542785 is 5872458044.

It can be written as a sum of positive squares in 6 ways, for example, as 213130801 + 4195411984 = 14599^2 + 64772^2 .

It is not a de Polignac number, because 4408542785 - 2⁴ = 4408542769 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315182 + ... + 328871.

It is an arithmetic number, because the mean of its divisors is an integer number (453091989).

Almost surely, 2^4408542785 is an apocalyptic number.

It is an amenable number.

4408542785 is a deficient number, since it is larger than the sum of its proper divisors (1028561083).

4408542785 is an equidigital number, since it uses as much as digits as its factorization.

4408542785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644132 (or 644095 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 47.

The square root of 4408542785 is about 66396.8582464562. The cubic root of 4408542785 is about 1639.7023534040.

The spelling of 4408542785 in words is "four billion, four hundred eight million, five hundred forty-two thousand, seven hundred eighty-five".