2196722643 has 16 divisors (see below), whose sum is σ = 3143743776. Its totient is φ = 1359452160.

The previous prime is 2196722621. The next prime is 2196722659. The reversal of 2196722643 is 3462276912.

It is not a de Polignac number, because 2196722643 - 2⁵ = 2196722611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2196722595 and 2196722604.

It is not an unprimeable number, because it can be changed into a prime (2196722603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291298 + ... + 298743.

It is an arithmetic number, because the mean of its divisors is an integer number (196483986).

Almost surely, 2^2196722643 is an apocalyptic number.

2196722643 is a deficient number, since it is larger than the sum of its proper divisors (947021133).

2196722643 is a wasteful number, since it uses less digits than its factorization.

2196722643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590134.

The product of its digits is 217728, while the sum is 42.

The square root of 2196722643 is about 46869.2078341420. The cubic root of 2196722643 is about 1299.9452921751.

The spelling of 2196722643 in words is "two billion, one hundred ninety-six million, seven hundred twenty-two thousand, six hundred forty-three".