4091364191 has 2 divisors, whose sum is σ = 4091364192. Its totient is φ = 4091364190.

The previous prime is 4091364187. The next prime is 4091364209. The reversal of 4091364191 is 1914631904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4091364191 - 2² = 4091364187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4091364161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045682095 + 2045682096.

It is an arithmetic number, because the mean of its divisors is an integer number (2045682096).

Almost surely, 2^4091364191 is an apocalyptic number.

4091364191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4091364191 is an equidigital number, since it uses as much as digits as its factorization.

4091364191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 4091364191 is about 63963.7724888081. The cubic root of 4091364191 is about 1599.3961511692.

The spelling of 4091364191 in words is "four billion, ninety-one million, three hundred sixty-four thousand, one hundred ninety-one".