86858347349 has 2 divisors, whose sum is σ = 86858347350. Its totient is φ = 86858347348.

The previous prime is 86858347339. The next prime is 86858347409. The reversal of 86858347349 is 94374385868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71613506449 + 15244840900 = 267607^2 + 123470^2 .

It is a cyclic number.

It is not a de Polignac number, because 86858347349 - 2²⁴ = 86841570133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86858347339) 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, 43429173674 + 43429173675.

It is an arithmetic number, because the mean of its divisors is an integer number (43429173675).

Almost surely, 2^86858347349 is an apocalyptic number.

It is an amenable number.

86858347349 is a deficient number, since it is larger than the sum of its proper divisors (1).

86858347349 is an equidigital number, since it uses as much as digits as its factorization.

86858347349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139345920, while the sum is 65.

The spelling of 86858347349 in words is "eighty-six billion, eight hundred fifty-eight million, three hundred forty-seven thousand, three hundred forty-nine".