4195089391 has 2 divisors, whose sum is σ = 4195089392. Its totient is φ = 4195089390.

The previous prime is 4195089383. The next prime is 4195089427. The reversal of 4195089391 is 1939805914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4195089391 - 2³ = 4195089383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4195089091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097544695 + 2097544696.

It is an arithmetic number, because the mean of its divisors is an integer number (2097544696).

Almost surely, 2^4195089391 is an apocalyptic number.

4195089391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4195089391 is an equidigital number, since it uses as much as digits as its factorization.

4195089391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 4195089391 is about 64769.5097325895. The cubic root of 4195089391 is about 1612.7995978465.

The spelling of 4195089391 in words is "four billion, one hundred ninety-five million, eighty-nine thousand, three hundred ninety-one".