2195673871 has 2 divisors, whose sum is σ = 2195673872. Its totient is φ = 2195673870.

The previous prime is 2195673853. The next prime is 2195673889. The reversal of 2195673871 is 1783765912.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2195673853) and next prime (2195673889).

It is a cyclic number.

It is not a de Polignac number, because 2195673871 - 2¹³ = 2195665679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195673841) 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, 1097836935 + 1097836936.

It is an arithmetic number, because the mean of its divisors is an integer number (1097836936).

Almost surely, 2^2195673871 is an apocalyptic number.

2195673871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195673871 is an equidigital number, since it uses as much as digits as its factorization.

2195673871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The square root of 2195673871 is about 46858.0182146023. The cubic root of 2195673871 is about 1299.7383834496.

The spelling of 2195673871 in words is "two billion, one hundred ninety-five million, six hundred seventy-three thousand, eight hundred seventy-one".