8168434044677 has 2 divisors, whose sum is σ = 8168434044678. Its totient is φ = 8168434044676.

The previous prime is 8168434044599. The next prime is 8168434044697. The reversal of 8168434044677 is 7764404348618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7861552391716 + 306881652961 = 2803846^2 + 553969^2 .

It is a cyclic number.

It is not a de Polignac number, because 8168434044677 - 2⁴² = 3770387533573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8168434044697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4084217022338 + 4084217022339.

It is an arithmetic number, because the mean of its divisors is an integer number (4084217022339).

Almost surely, 2^{8168434044677} is an apocalyptic number.

It is an amenable number.

8168434044677 is a deficient number, since it is larger than the sum of its proper divisors (1).

8168434044677 is an equidigital number, since it uses as much as digits as its factorization.

8168434044677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86704128, while the sum is 62.

The spelling of 8168434044677 in words is "eight trillion, one hundred sixty-eight billion, four hundred thirty-four million, forty-four thousand, six hundred seventy-seven".