86716186939 has 2 divisors, whose sum is σ = 86716186940. Its totient is φ = 86716186938.

The previous prime is 86716186937. The next prime is 86716186969. The reversal of 86716186939 is 93968161768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86716186939 - 2¹ = 86716186937 is a prime.

Together with 86716186937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86716186933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43358093469 + 43358093470.

It is an arithmetic number, because the mean of its divisors is an integer number (43358093470).

Almost surely, 2^86716186939 is an apocalyptic number.

86716186939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86716186939 is an equidigital number, since it uses as much as digits as its factorization.

86716186939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 64.

The spelling of 86716186939 in words is "eighty-six billion, seven hundred sixteen million, one hundred eighty-six thousand, nine hundred thirty-nine".