3968261191 has 2 divisors, whose sum is σ = 3968261192. Its totient is φ = 3968261190.

The previous prime is 3968261179. The next prime is 3968261201. The reversal of 3968261191 is 1911628693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3968261191 - 2¹⁷ = 3968130119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3968261111) 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 as a sum of consecutive naturals, namely, 1984130595 + 1984130596.

It is an arithmetic number, because the mean of its divisors is an integer number (1984130596).

Almost surely, 2^3968261191 is an apocalyptic number.

3968261191 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968261191 is an equidigital number, since it uses as much as digits as its factorization.

3968261191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 3968261191 is about 62994.1361636145. The cubic root of 3968261191 is about 1583.1913798596.

The spelling of 3968261191 in words is "three billion, nine hundred sixty-eight million, two hundred sixty-one thousand, one hundred ninety-one".