86609393219 has 2 divisors, whose sum is σ = 86609393220. Its totient is φ = 86609393218.

The previous prime is 86609393173. The next prime is 86609393251. The reversal of 86609393219 is 91239390668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86609393219 - 2²⁴ = 86592616003 is a prime.

It is a super-2 number, since 2×86609393219² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (86609396219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43304696609 + 43304696610.

It is an arithmetic number, because the mean of its divisors is an integer number (43304696610).

Almost surely, 2^86609393219 is an apocalyptic number.

86609393219 is a deficient number, since it is larger than the sum of its proper divisors (1).

86609393219 is an equidigital number, since it uses as much as digits as its factorization.

86609393219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 86609393219 in words is "eighty-six billion, six hundred nine million, three hundred ninety-three thousand, two hundred nineteen".