86449958068321 has 2 divisors, whose sum is σ = 86449958068322. Its totient is φ = 86449958068320.

The previous prime is 86449958068319. The next prime is 86449958068361. The reversal of 86449958068321 is 12386085994468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49620401430625 + 36829556637696 = 7044175^2 + 6068736^2 .

It is a cyclic number.

It is not a de Polignac number, because 86449958068321 - 2¹ = 86449958068319 is a prime.

Together with 86449958068319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86449958068361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43224979034160 + 43224979034161.

It is an arithmetic number, because the mean of its divisors is an integer number (43224979034161).

Almost surely, 2^{86449958068321} is an apocalyptic number.

It is an amenable number.

86449958068321 is a deficient number, since it is larger than the sum of its proper divisors (1).

86449958068321 is an equidigital number, since it uses as much as digits as its factorization.

86449958068321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 716636160, while the sum is 73.

The spelling of 86449958068321 in words is "eighty-six trillion, four hundred forty-nine billion, nine hundred fifty-eight million, sixty-eight thousand, three hundred twenty-one".