86241017423221 has 2 divisors, whose sum is σ = 86241017423222. Its totient is φ = 86241017423220.

The previous prime is 86241017423213. The next prime is 86241017423257. The reversal of 86241017423221 is 12232471014268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57573024360721 + 28667993062500 = 7587689^2 + 5354250^2 .

It is a cyclic number.

It is not a de Polignac number, because 86241017423221 - 2³ = 86241017423213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86241017429221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43120508711610 + 43120508711611.

It is an arithmetic number, because the mean of its divisors is an integer number (43120508711611).

Almost surely, 2^{86241017423221} is an apocalyptic number.

It is an amenable number.

86241017423221 is a deficient number, since it is larger than the sum of its proper divisors (1).

86241017423221 is an equidigital number, since it uses as much as digits as its factorization.

86241017423221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 43.

Adding to 86241017423221 its reverse (12232471014268), we get a palindrome (98473488437489).

The spelling of 86241017423221 in words is "eighty-six trillion, two hundred forty-one billion, seventeen million, four hundred twenty-three thousand, two hundred twenty-one".