6723323551 has 4 divisors (see below), whose sum is σ = 7683798352. Its totient is φ = 5762848752.

The previous prime is 6723323543. The next prime is 6723323587. The reversal of 6723323551 is 1553233276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6723323551 - 2³ = 6723323543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6723323551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6723323501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480237390 + ... + 480237403.

It is an arithmetic number, because the mean of its divisors is an integer number (1920949588).

Almost surely, 2^6723323551 is an apocalyptic number.

6723323551 is a deficient number, since it is larger than the sum of its proper divisors (960474801).

6723323551 is an equidigital number, since it uses as much as digits as its factorization.

6723323551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960474800.

The product of its digits is 113400, while the sum is 37.

The square root of 6723323551 is about 81995.8752072322. The cubic root of 6723323551 is about 1887.3886419749.

The spelling of 6723323551 in words is "six billion, seven hundred twenty-three million, three hundred twenty-three thousand, five hundred fifty-one".