8182021517297 has 2 divisors, whose sum is σ = 8182021517298. Its totient is φ = 8182021517296.

The previous prime is 8182021517291. The next prime is 8182021517323. The reversal of 8182021517297 is 7927151202818.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4144497926416 + 4037523590881 = 2035804^2 + 2009359^2 .

It is a cyclic number.

It is not a de Polignac number, because 8182021517297 - 2⁸ = 8182021517041 is a prime.

It is a super-2 number, since 2×8182021517297² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8182021517291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4091010758648 + 4091010758649.

It is an arithmetic number, because the mean of its divisors is an integer number (4091010758649).

Almost surely, 2^{8182021517297} is an apocalyptic number.

It is an amenable number.

8182021517297 is a deficient number, since it is larger than the sum of its proper divisors (1).

8182021517297 is an equidigital number, since it uses as much as digits as its factorization.

8182021517297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The spelling of 8182021517297 in words is "eight trillion, one hundred eighty-two billion, twenty-one million, five hundred seventeen thousand, two hundred ninety-seven".