4181085649 has 8 divisors (see below), whose sum is σ = 4522902272. Its totient is φ = 3842154000.

The previous prime is 4181085631. The next prime is 4181085707. The reversal of 4181085649 is 9465801814.

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

It is a cyclic number.

It is not a de Polignac number, because 4181085649 - 2¹⁹ = 4180561361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4181085599 and 4181085608.

It is not an unprimeable number, because it can be changed into a prime (4181085449) 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, 718227 + ... + 724024.

It is an arithmetic number, because the mean of its divisors is an integer number (565362784).

Almost surely, 2^4181085649 is an apocalyptic number.

It is an amenable number.

4181085649 is a deficient number, since it is larger than the sum of its proper divisors (341816623).

4181085649 is a wasteful number, since it uses less digits than its factorization.

4181085649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442487.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 4181085649 is about 64661.3149340469. The cubic root of 4181085649 is about 1611.0030205584.

The spelling of 4181085649 in words is "four billion, one hundred eighty-one million, eighty-five thousand, six hundred forty-nine".