86571385139 has 2 divisors, whose sum is σ = 86571385140. Its totient is φ = 86571385138.

The previous prime is 86571385073. The next prime is 86571385151. The reversal of 86571385139 is 93158317568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86571385139 - 2³² = 82276417843 is a prime.

It is not a weakly prime, because it can be changed into another prime (86571385169) 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, 43285692569 + 43285692570.

It is an arithmetic number, because the mean of its divisors is an integer number (43285692570).

Almost surely, 2^86571385139 is an apocalyptic number.

86571385139 is a deficient number, since it is larger than the sum of its proper divisors (1).

86571385139 is an equidigital number, since it uses as much as digits as its factorization.

86571385139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 56.

The spelling of 86571385139 in words is "eighty-six billion, five hundred seventy-one million, three hundred eighty-five thousand, one hundred thirty-nine".