3981849875 has 16 divisors (see below), whose sum is σ = 4971233280. Its totient is φ = 3184272000.

The previous prime is 3981849863. The next prime is 3981849887. The reversal of 3981849875 is 5789481893.

It is an interprime number because it is at equal distance from previous prime (3981849863) and next prime (3981849887).

It is not a de Polignac number, because 3981849875 - 2¹² = 3981845779 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 482030 + ... + 490220.

It is an arithmetic number, because the mean of its divisors is an integer number (310702080).

Almost surely, 2^3981849875 is an apocalyptic number.

3981849875 is a deficient number, since it is larger than the sum of its proper divisors (989383405).

3981849875 is an equidigital number, since it uses as much as digits as its factorization.

3981849875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12095 (or 12085 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 62.

The square root of 3981849875 is about 63101.9007241462. The cubic root of 3981849875 is about 1584.9964506815.

The spelling of 3981849875 in words is "three billion, nine hundred eighty-one million, eight hundred forty-nine thousand, eight hundred seventy-five".