86593535993 has 2 divisors, whose sum is σ = 86593535994. Its totient is φ = 86593535992.

The previous prime is 86593535929. The next prime is 86593536023. The reversal of 86593535993 is 39953539568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51844102249 + 34749433744 = 227693^2 + 186412^2 .

It is a cyclic number.

It is not a de Polignac number, because 86593535993 - 2⁶ = 86593535929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86593535393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43296767996 + 43296767997.

It is an arithmetic number, because the mean of its divisors is an integer number (43296767997).

Almost surely, 2^86593535993 is an apocalyptic number.

It is an amenable number.

86593535993 is a deficient number, since it is larger than the sum of its proper divisors (1).

86593535993 is an equidigital number, since it uses as much as digits as its factorization.

86593535993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118098000, while the sum is 65.

The spelling of 86593535993 in words is "eighty-six billion, five hundred ninety-three million, five hundred thirty-five thousand, nine hundred ninety-three".