86708340469549 has 2 divisors, whose sum is σ = 86708340469550. Its totient is φ = 86708340469548.

The previous prime is 86708340469489. The next prime is 86708340469573. The reversal of 86708340469549 is 94596404380768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85722470201449 + 985870268100 = 9258643^2 + 992910^2 .

It is a cyclic number.

It is not a de Polignac number, because 86708340469549 - 2¹¹ = 86708340467501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86708340469579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43354170234774 + 43354170234775.

It is an arithmetic number, because the mean of its divisors is an integer number (43354170234775).

Almost surely, 2^{86708340469549} is an apocalyptic number.

It is an amenable number.

86708340469549 is a deficient number, since it is larger than the sum of its proper divisors (1).

86708340469549 is an equidigital number, since it uses as much as digits as its factorization.

86708340469549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1254113280, while the sum is 73.

The spelling of 86708340469549 in words is "eighty-six trillion, seven hundred eight billion, three hundred forty million, four hundred sixty-nine thousand, five hundred forty-nine".