3981842195 has 8 divisors (see below), whose sum is σ = 4787349936. Its totient is φ = 3179380896.

The previous prime is 3981842191. The next prime is 3981842197. The reversal of 3981842195 is 5912481893.

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 3981842195 - 2² = 3981842191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3981842191) by changing a digit.

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, 758732 + ... + 763961.

It is an arithmetic number, because the mean of its divisors is an integer number (598418742).

Almost surely, 2^3981842195 is an apocalyptic number.

3981842195 is a deficient number, since it is larger than the sum of its proper divisors (805507741).

3981842195 is a wasteful number, since it uses less digits than its factorization.

3981842195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523221.

The product of its digits is 622080, while the sum is 50.

The square root of 3981842195 is about 63101.8398701654. The cubic root of 3981842195 is about 1584.9954316593.

The spelling of 3981842195 in words is "three billion, nine hundred eighty-one million, eight hundred forty-two thousand, one hundred ninety-five".