4044471985 has 8 divisors (see below), whose sum is σ = 4858126056. Its totient is φ = 3232404480.

The previous prime is 4044471971. The next prime is 4044472043. The reversal of 4044471985 is 5891744404.

It can be written as a sum of positive squares in 4 ways, for example, as 1703460529 + 2341011456 = 41273^2 + 48384^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4044471985 - 2⁵ = 4044471953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391024 + ... + 401233.

It is an arithmetic number, because the mean of its divisors is an integer number (607265757).

Almost surely, 2^4044471985 is an apocalyptic number.

It is an amenable number.

4044471985 is a deficient number, since it is larger than the sum of its proper divisors (813654071).

4044471985 is a wasteful number, since it uses less digits than its factorization.

4044471985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793283.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 4044471985 is about 63596.1632883620. The cubic root of 4044471985 is about 1593.2622899129.

The spelling of 4044471985 in words is "four billion, forty-four million, four hundred seventy-one thousand, nine hundred eighty-five".