8178445004123 has 2 divisors, whose sum is σ = 8178445004124. Its totient is φ = 8178445004122.

The previous prime is 8178445004099. The next prime is 8178445004161. The reversal of 8178445004123 is 3214005448718.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8178445004123 - 2¹² = 8178445000027 is a prime.

It is not a weakly prime, because it can be changed into another prime (8178445000123) 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, 4089222502061 + 4089222502062.

It is an arithmetic number, because the mean of its divisors is an integer number (4089222502062).

Almost surely, 2^{8178445004123} is an apocalyptic number.

8178445004123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8178445004123 is an equidigital number, since it uses as much as digits as its factorization.

8178445004123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 8178445004123 in words is "eight trillion, one hundred seventy-eight billion, four hundred forty-five million, four thousand, one hundred twenty-three".