86171869231 has 8 divisors (see below), whose sum is σ = 98484613920. Its totient is φ = 73859743968.

The previous prime is 86171869219. The next prime is 86171869247. The reversal of 86171869231 is 13296817168.

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

It is a cyclic number.

It is not a de Polignac number, because 86171869231 - 2³¹ = 84024385583 is a prime.

It is a super-2 number, since 2×86171869231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86171869271) 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, 196365 + ... + 459241.

It is an arithmetic number, because the mean of its divisors is an integer number (12310576740).

Almost surely, 2^86171869231 is an apocalyptic number.

86171869231 is a deficient number, since it is larger than the sum of its proper divisors (12312744689).

86171869231 is a wasteful number, since it uses less digits than its factorization.

86171869231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309713.

The product of its digits is 870912, while the sum is 52.

The spelling of 86171869231 in words is "eighty-six billion, one hundred seventy-one million, eight hundred sixty-nine thousand, two hundred thirty-one".