6675945761 has 2 divisors, whose sum is σ = 6675945762. Its totient is φ = 6675945760.

The previous prime is 6675945743. The next prime is 6675945791. The reversal of 6675945761 is 1675495766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4280430625 + 2395515136 = 65425^2 + 48944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6675945761 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6675945697 and 6675945706.

It is not a weakly prime, because it can be changed into another prime (6675945791) 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, 3337972880 + 3337972881.

It is an arithmetic number, because the mean of its divisors is an integer number (3337972881).

Almost surely, 2^6675945761 is an apocalyptic number.

It is an amenable number.

6675945761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6675945761 is an equidigital number, since it uses as much as digits as its factorization.

6675945761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9525600, while the sum is 56.

The square root of 6675945761 is about 81706.4609501599. The cubic root of 6675945761 is about 1882.9448491598.

The spelling of 6675945761 in words is "six billion, six hundred seventy-five million, nine hundred forty-five thousand, seven hundred sixty-one".