6544751677 has 2 divisors, whose sum is σ = 6544751678. Its totient is φ = 6544751676.

The previous prime is 6544751663. The next prime is 6544751711. The reversal of 6544751677 is 7761574456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6532842276 + 11909401 = 80826^2 + 3451^2 .

It is a cyclic number.

It is not a de Polignac number, because 6544751677 - 2²³ = 6536363069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6544751657) 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, 3272375838 + 3272375839.

It is an arithmetic number, because the mean of its divisors is an integer number (3272375839).

Almost surely, 2^6544751677 is an apocalyptic number.

It is an amenable number.

6544751677 is a deficient number, since it is larger than the sum of its proper divisors (1).

6544751677 is an equidigital number, since it uses as much as digits as its factorization.

6544751677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 52.

The square root of 6544751677 is about 80899.6395356617. The cubic root of 6544751677 is about 1870.5287643668.

The spelling of 6544751677 in words is "six billion, five hundred forty-four million, seven hundred fifty-one thousand, six hundred seventy-seven".