8046208378181 has 2 divisors, whose sum is σ = 8046208378182. Its totient is φ = 8046208378180.

The previous prime is 8046208378127. The next prime is 8046208378237. The reversal of 8046208378181 is 1818738026408.

It is an a-pointer prime, because the next prime (8046208378237) can be obtained adding 8046208378181 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4762175782081 + 3284032596100 = 2182241^2 + 1812190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8046208378181 is a prime.

It is a super-2 number, since 2×8046208378181² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8046208378081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4023104189090 + 4023104189091.

It is an arithmetic number, because the mean of its divisors is an integer number (4023104189091).

Almost surely, 2^{8046208378181} is an apocalyptic number.

It is an amenable number.

8046208378181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8046208378181 is an equidigital number, since it uses as much as digits as its factorization.

8046208378181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4128768, while the sum is 56.

The spelling of 8046208378181 in words is "eight trillion, forty-six billion, two hundred eight million, three hundred seventy-eight thousand, one hundred eighty-one".