3941081191 has 4 divisors (see below), whose sum is σ = 3981710992. Its totient is φ = 3900451392.

The previous prime is 3941081161. The next prime is 3941081227. The reversal of 3941081191 is 1911801493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3941081191 - 2¹⁷ = 3940950119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3941081191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3941081101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20314755 + ... + 20314948.

It is an arithmetic number, because the mean of its divisors is an integer number (995427748).

Almost surely, 2^3941081191 is an apocalyptic number.

3941081191 is a deficient number, since it is larger than the sum of its proper divisors (40629801).

3941081191 is an equidigital number, since it uses as much as digits as its factorization.

3941081191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40629800.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 3941081191 is about 62778.0311175813. The cubic root of 3941081191 is about 1579.5684864169.

The spelling of 3941081191 in words is "three billion, nine hundred forty-one million, eighty-one thousand, one hundred ninety-one".