86171365643 has 8 divisors (see below), whose sum is σ = 94028142576. Its totient is φ = 78318424800.

The previous prime is 86171365613. The next prime is 86171365661. The reversal of 86171365643 is 34656317168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86171365643 - 2⁸ = 86171365387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86171365591 and 86171365600.

It is not an unprimeable number, because it can be changed into a prime (86171365613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911948 + ... + 1001993.

It is an arithmetic number, because the mean of its divisors is an integer number (11753517822).

Almost surely, 2^86171365643 is an apocalyptic number.

86171365643 is a deficient number, since it is larger than the sum of its proper divisors (7856776933).

86171365643 is a wasteful number, since it uses less digits than its factorization.

86171365643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918045.

The product of its digits is 2177280, while the sum is 50.

The spelling of 86171365643 in words is "eighty-six billion, one hundred seventy-one million, three hundred sixty-five thousand, six hundred forty-three".