7766631056347 has 2 divisors, whose sum is σ = 7766631056348. Its totient is φ = 7766631056346.

The previous prime is 7766631056333. The next prime is 7766631056407. The reversal of 7766631056347 is 7436501366677.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7766631056347 is a prime.

It is not a weakly prime, because it can be changed into another prime (7766631056747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883315528173 + 3883315528174.

It is an arithmetic number, because the mean of its divisors is an integer number (3883315528174).

Almost surely, 2^{7766631056347} is an apocalyptic number.

7766631056347 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766631056347 is an equidigital number, since it uses as much as digits as its factorization.

7766631056347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80015040, while the sum is 61.

The spelling of 7766631056347 in words is "seven trillion, seven hundred sixty-six billion, six hundred thirty-one million, fifty-six thousand, three hundred forty-seven".