4191893663 has 2 divisors, whose sum is σ = 4191893664. Its totient is φ = 4191893662.

The previous prime is 4191893623. The next prime is 4191893683. The reversal of 4191893663 is 3663981914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4191893663 - 2⁶ = 4191893599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4191893623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095946831 + 2095946832.

It is an arithmetic number, because the mean of its divisors is an integer number (2095946832).

Almost surely, 2^4191893663 is an apocalyptic number.

4191893663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4191893663 is an equidigital number, since it uses as much as digits as its factorization.

4191893663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 4191893663 is about 64744.8350295219. The cubic root of 4191893663 is about 1612.3899619080.

The spelling of 4191893663 in words is "four billion, one hundred ninety-one million, eight hundred ninety-three thousand, six hundred sixty-three".