3981119494 has 32 divisors (see below), whose sum is σ = 6676349472. Its totient is φ = 1779861600.

The previous prime is 3981119477. The next prime is 3981119501. The reversal of 3981119494 is 4949111893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150124 + ... + 174640.

It is an arithmetic number, because the mean of its divisors is an integer number (208635921).

Almost surely, 2^3981119494 is an apocalyptic number.

3981119494 is a deficient number, since it is larger than the sum of its proper divisors (2695229978).

3981119494 is a wasteful number, since it uses less digits than its factorization.

3981119494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24613 (or 24591 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 3981119494 is about 63096.1131449474. The cubic root of 3981119494 is about 1584.8995340793.

The spelling of 3981119494 in words is "three billion, nine hundred eighty-one million, one hundred nineteen thousand, four hundred ninety-four".