6721737343 has 2 divisors, whose sum is σ = 6721737344. Its totient is φ = 6721737342.

The previous prime is 6721737311. The next prime is 6721737353. The reversal of 6721737343 is 3437371276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6721737343 - 2⁵ = 6721737311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6721737343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6721737353) 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, 3360868671 + 3360868672.

It is an arithmetic number, because the mean of its divisors is an integer number (3360868672).

Almost surely, 2^6721737343 is an apocalyptic number.

6721737343 is a deficient number, since it is larger than the sum of its proper divisors (1).

6721737343 is an equidigital number, since it uses as much as digits as its factorization.

6721737343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 43.

The square root of 6721737343 is about 81986.2021501179. The cubic root of 6721737343 is about 1887.2402021738.

The spelling of 6721737343 in words is "six billion, seven hundred twenty-one million, seven hundred thirty-seven thousand, three hundred forty-three".