6723142549 has 2 divisors, whose sum is σ = 6723142550. Its totient is φ = 6723142548.

The previous prime is 6723142477. The next prime is 6723142583. The reversal of 6723142549 is 9452413276.

6723142549 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4145041924 + 2578100625 = 64382^2 + 50775^2 .

It is a cyclic number.

It is not a de Polignac number, because 6723142549 - 2¹³ = 6723134357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6723142849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361571274 + 3361571275.

It is an arithmetic number, because the mean of its divisors is an integer number (3361571275).

Almost surely, 2^6723142549 is an apocalyptic number.

It is an amenable number.

6723142549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6723142549 is an equidigital number, since it uses as much as digits as its factorization.

6723142549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 6723142549 is about 81994.7714735519. The cubic root of 6723142549 is about 1887.3717047076.

The spelling of 6723142549 in words is "six billion, seven hundred twenty-three million, one hundred forty-two thousand, five hundred forty-nine".