2195682643 has 8 divisors (see below), whose sum is σ = 2737474560. Its totient is φ = 1710921480.

The previous prime is 2195682623. The next prime is 2195682647. The reversal of 2195682643 is 3462865912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2195682643 - 2⁹ = 2195682131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2195682593 and 2195682602.

It is not an unprimeable number, because it can be changed into a prime (2195682647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14257603 + ... + 14257756.

It is an arithmetic number, because the mean of its divisors is an integer number (342184320).

Almost surely, 2^2195682643 is an apocalyptic number.

2195682643 is a deficient number, since it is larger than the sum of its proper divisors (541791917).

2195682643 is a wasteful number, since it uses less digits than its factorization.

2195682643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28515377.

The product of its digits is 622080, while the sum is 46.

The square root of 2195682643 is about 46858.1118164187. Note that the first 3 decimals coincide. The cubic root of 2195682643 is about 1299.7401143214.

The spelling of 2195682643 in words is "two billion, one hundred ninety-five million, six hundred eighty-two thousand, six hundred forty-three".