2193644371 has 2 divisors, whose sum is σ = 2193644372. Its totient is φ = 2193644370.

The previous prime is 2193644353. The next prime is 2193644377. The reversal of 2193644371 is 1734463912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2193644371 - 2¹⁷ = 2193513299 is a prime.

It is not a weakly prime, because it can be changed into another prime (2193644377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096822185 + 1096822186.

It is an arithmetic number, because the mean of its divisors is an integer number (1096822186).

Almost surely, 2^2193644371 is an apocalyptic number.

2193644371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193644371 is an equidigital number, since it uses as much as digits as its factorization.

2193644371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 2193644371 is about 46836.3573626302. The cubic root of 2193644371 is about 1299.3378029825.

The spelling of 2193644371 in words is "two billion, one hundred ninety-three million, six hundred forty-four thousand, three hundred seventy-one".