86732169971 has 2 divisors, whose sum is σ = 86732169972. Its totient is φ = 86732169970.

The previous prime is 86732169959. The next prime is 86732169973. The reversal of 86732169971 is 17996123768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86732169971 - 2²² = 86727975667 is a prime.

It is a Sophie Germain prime.

Together with 86732169973, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86732169971.

It is not a weakly prime, because it can be changed into another prime (86732169973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43366084985 + 43366084986.

It is an arithmetic number, because the mean of its divisors is an integer number (43366084986).

Almost surely, 2^86732169971 is an apocalyptic number.

86732169971 is a deficient number, since it is larger than the sum of its proper divisors (1).

86732169971 is an equidigital number, since it uses as much as digits as its factorization.

86732169971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 59.

The spelling of 86732169971 in words is "eighty-six billion, seven hundred thirty-two million, one hundred sixty-nine thousand, nine hundred seventy-one".