4149841985 has 8 divisors (see below), whose sum is σ = 4999651776. Its totient is φ = 3306646000.

The previous prime is 4149841981. The next prime is 4149841987. The reversal of 4149841985 is 5891489414.

It is a happy number.

4149841985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4149841985 - 2² = 4149841981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4149841981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652069 + ... + 1654578.

It is an arithmetic number, because the mean of its divisors is an integer number (624956472).

Almost surely, 2^4149841985 is an apocalyptic number.

It is an amenable number.

4149841985 is a deficient number, since it is larger than the sum of its proper divisors (849809791).

4149841985 is a wasteful number, since it uses less digits than its factorization.

4149841985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306903.

The product of its digits is 1658880, while the sum is 53.

The square root of 4149841985 is about 64419.2671876978. The cubic root of 4149841985 is about 1606.9801790350.

The spelling of 4149841985 in words is "four billion, one hundred forty-nine million, eight hundred forty-one thousand, nine hundred eighty-five".