86241017423257 has 2 divisors, whose sum is σ = 86241017423258. Its totient is φ = 86241017423256.

The previous prime is 86241017423221. The next prime is 86241017423333. The reversal of 86241017423257 is 75232471014268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73854446887321 + 12386570535936 = 8593861^2 + 3519456^2 .

It is a cyclic number.

It is not a de Polignac number, because 86241017423257 - 2⁷ = 86241017423129 is a prime.

It is not a weakly prime, because it can be changed into another prime (86241017423857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43120508711628 + 43120508711629.

It is an arithmetic number, because the mean of its divisors is an integer number (43120508711629).

Almost surely, 2^{86241017423257} is an apocalyptic number.

It is an amenable number.

86241017423257 is a deficient number, since it is larger than the sum of its proper divisors (1).

86241017423257 is an equidigital number, since it uses as much as digits as its factorization.

86241017423257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 86241017423257 in words is "eighty-six trillion, two hundred forty-one billion, seventeen million, four hundred twenty-three thousand, two hundred fifty-seven".