86171239401 has 16 divisors (see below), whose sum is σ = 125428039296. Its totient is φ = 52302036096.

The previous prime is 86171239381. The next prime is 86171239403. The reversal of 86171239401 is 10493217168.

It is a happy number.

It is not a de Polignac number, because 86171239401 - 2¹⁸ = 86170977257 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 15130845 + ... + 15136538.

It is an arithmetic number, because the mean of its divisors is an integer number (7839252456).

Almost surely, 2^86171239401 is an apocalyptic number.

It is an amenable number.

86171239401 is a deficient number, since it is larger than the sum of its proper divisors (39256799895).

86171239401 is a wasteful number, since it uses less digits than its factorization.

86171239401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30267472.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 86171239401 in words is "eighty-six billion, one hundred seventy-one million, two hundred thirty-nine thousand, four hundred one".