7766043673 has 2 divisors, whose sum is σ = 7766043674. Its totient is φ = 7766043672.

The previous prime is 7766043671. The next prime is 7766043721. The reversal of 7766043673 is 3763406677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7197316569 + 568727104 = 84837^2 + 23848^2 .

It is a cyclic number.

It is not a de Polignac number, because 7766043673 - 2¹ = 7766043671 is a prime.

It is a super-2 number, since 2×7766043673² (a number of 21 digits) contains 22 as substring.

Together with 7766043671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7766043671) 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, 3883021836 + 3883021837.

It is an arithmetic number, because the mean of its divisors is an integer number (3883021837).

Almost surely, 2^7766043673 is an apocalyptic number.

It is an amenable number.

7766043673 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766043673 is an equidigital number, since it uses as much as digits as its factorization.

7766043673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2667168, while the sum is 49.

The square root of 7766043673 is about 88125.1591374450. The cubic root of 7766043673 is about 1980.3104360549.

The spelling of 7766043673 in words is "seven billion, seven hundred sixty-six million, forty-three thousand, six hundred seventy-three".