6746557109 has 2 divisors, whose sum is σ = 6746557110. Its totient is φ = 6746557108.

The previous prime is 6746557073. The next prime is 6746557177. The reversal of 6746557109 is 9017556476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6711214084 + 35343025 = 81922^2 + 5945^2 .

It is a cyclic number.

It is not a de Polignac number, because 6746557109 - 2¹² = 6746553013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6746587109) 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, 3373278554 + 3373278555.

It is an arithmetic number, because the mean of its divisors is an integer number (3373278555).

Almost surely, 2^6746557109 is an apocalyptic number.

It is an amenable number.

6746557109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6746557109 is an equidigital number, since it uses as much as digits as its factorization.

6746557109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 6746557109 is about 82137.4281859373. The cubic root of 6746557109 is about 1889.5602038381.

The spelling of 6746557109 in words is "six billion, seven hundred forty-six million, five hundred fifty-seven thousand, one hundred nine".