2643909196 has 6 divisors (see below), whose sum is σ = 4626841100. Its totient is φ = 1321954596.

The previous prime is 2643909157. The next prime is 2643909197. The reversal of 2643909196 is 6919093462.

It is not an unprimeable number, because it can be changed into a prime (2643909197) 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, 330488646 + ... + 330488653.

Almost surely, 2^2643909196 is an apocalyptic number.

It is an amenable number.

2643909196 is a deficient number, since it is larger than the sum of its proper divisors (1982931904).

2643909196 is a wasteful number, since it uses less digits than its factorization.

2643909196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660977303 (or 660977301 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 2643909196 is about 51418.9575545829. The cubic root of 2643909196 is about 1382.7664863051.

The spelling of 2643909196 in words is "two billion, six hundred forty-three million, nine hundred nine thousand, one hundred ninety-six".