7666872786667 has 2 divisors, whose sum is σ = 7666872786668. Its totient is φ = 7666872786666.

The previous prime is 7666872786649. The next prime is 7666872786673.

7666872786667 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 7666872786667 - 2²⁷ = 7666738568939 is a prime.

It is not a weakly prime, because it can be changed into another prime (7666872786607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833436393333 + 3833436393334.

It is an arithmetic number, because the mean of its divisors is an integer number (3833436393334).

Almost surely, 2^{7666872786667} is an apocalyptic number.

7666872786667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666872786667 is an equidigital number, since it uses as much as digits as its factorization.

7666872786667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14338695168, while the sum is 82.

The spelling of 7666872786667 in words is "seven trillion, six hundred sixty-six billion, eight hundred seventy-two million, seven hundred eighty-six thousand, six hundred sixty-seven".