2643213523 has 2 divisors, whose sum is σ = 2643213524. Its totient is φ = 2643213522.

The previous prime is 2643213487. The next prime is 2643213527. The reversal of 2643213523 is 3253123462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2643213523 - 2²¹ = 2641116371 is a prime.

It is not a weakly prime, because it can be changed into another prime (2643213527) 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, 1321606761 + 1321606762.

It is an arithmetic number, because the mean of its divisors is an integer number (1321606762).

Almost surely, 2^2643213523 is an apocalyptic number.

2643213523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643213523 is an equidigital number, since it uses as much as digits as its factorization.

2643213523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 31.

The square root of 2643213523 is about 51412.1923574554. The cubic root of 2643213523 is about 1382.6451965001.

Adding to 2643213523 its reverse (3253123462), we get a palindrome (5896336985).

The spelling of 2643213523 in words is "two billion, six hundred forty-three million, two hundred thirteen thousand, five hundred twenty-three".