86546759209 has 2 divisors, whose sum is σ = 86546759210. Its totient is φ = 86546759208.

The previous prime is 86546759119. The next prime is 86546759227. The reversal of 86546759209 is 90295764568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60368490000 + 26178269209 = 245700^2 + 161797^2 .

It is a cyclic number.

It is not a de Polignac number, because 86546759209 - 2⁷ = 86546759081 is a prime.

It is not a weakly prime, because it can be changed into another prime (86546759239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43273379604 + 43273379605.

It is an arithmetic number, because the mean of its divisors is an integer number (43273379605).

Almost surely, 2^86546759209 is an apocalyptic number.

It is an amenable number.

86546759209 is a deficient number, since it is larger than the sum of its proper divisors (1).

86546759209 is an equidigital number, since it uses as much as digits as its factorization.

86546759209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 86546759209 in words is "eighty-six billion, five hundred forty-six million, seven hundred fifty-nine thousand, two hundred nine".