86171239402 has 8 divisors (see below), whose sum is σ = 130464867456. Its totient is φ = 42682950252.

The previous prime is 86171239381. The next prime is 86171239403. The reversal of 86171239402 is 20493217168.

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

It is not an unprimeable number, because it can be changed into a prime (86171239403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201334458 + ... + 201334885.

It is an arithmetic number, because the mean of its divisors is an integer number (16308108432).

Almost surely, 2^86171239402 is an apocalyptic number.

86171239402 is a deficient number, since it is larger than the sum of its proper divisors (44293628054).

86171239402 is a wasteful number, since it uses less digits than its factorization.

86171239402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402669452.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 86171239402 in words is "eighty-six billion, one hundred seventy-one million, two hundred thirty-nine thousand, four hundred two".