6543501323 has 2 divisors, whose sum is σ = 6543501324. Its totient is φ = 6543501322.

The previous prime is 6543501281. The next prime is 6543501353. The reversal of 6543501323 is 3231053456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6543501323 - 2²⁴ = 6526724107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6543501323.

It is not a weakly prime, because it can be changed into another prime (6543501353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271750661 + 3271750662.

It is an arithmetic number, because the mean of its divisors is an integer number (3271750662).

Almost surely, 2^6543501323 is an apocalyptic number.

6543501323 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543501323 is an equidigital number, since it uses as much as digits as its factorization.

6543501323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 6543501323 is about 80891.9113570696. The cubic root of 6543501323 is about 1870.4096372557.

Adding to 6543501323 its reverse (3231053456), we get a palindrome (9774554779).

The spelling of 6543501323 in words is "six billion, five hundred forty-three million, five hundred one thousand, three hundred twenty-three".