86563924609 has 2 divisors, whose sum is σ = 86563924610. Its totient is φ = 86563924608.

The previous prime is 86563924607. The next prime is 86563924693. The reversal of 86563924609 is 90642936568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83956801009 + 2607123600 = 289753^2 + 51060^2 .

It is a cyclic number.

It is not a de Polignac number, because 86563924609 - 2¹ = 86563924607 is a prime.

Together with 86563924607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86563924607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43281962304 + 43281962305.

It is an arithmetic number, because the mean of its divisors is an integer number (43281962305).

Almost surely, 2^86563924609 is an apocalyptic number.

It is an amenable number.

86563924609 is a deficient number, since it is larger than the sum of its proper divisors (1).

86563924609 is an equidigital number, since it uses as much as digits as its factorization.

86563924609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 86563924609 in words is "eighty-six billion, five hundred sixty-three million, nine hundred twenty-four thousand, six hundred nine".