2643346213 has 4 divisors (see below), whose sum is σ = 2648644000. Its totient is φ = 2638048428.

The previous prime is 2643346207. The next prime is 2643346289. The reversal of 2643346213 is 3126433462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2643346213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643346513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648145 + ... + 2649142.

It is an arithmetic number, because the mean of its divisors is an integer number (662161000).

Almost surely, 2^2643346213 is an apocalyptic number.

It is an amenable number.

2643346213 is a deficient number, since it is larger than the sum of its proper divisors (5297787).

2643346213 is an equidigital number, since it uses as much as digits as its factorization.

2643346213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297786.

The product of its digits is 62208, while the sum is 34.

The square root of 2643346213 is about 51413.4827939131. The cubic root of 2643346213 is about 1382.6683324947.

Adding to 2643346213 its reverse (3126433462), we get a palindrome (5769779675).

The spelling of 2643346213 in words is "two billion, six hundred forty-three million, three hundred forty-six thousand, two hundred thirteen".