86439175909 has 8 divisors (see below), whose sum is σ = 91008096480. Its totient is φ = 81872204400.

The previous prime is 86439175883. The next prime is 86439175913. The reversal of 86439175909 is 90957193468.

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 86439175909 - 2⁵ = 86439175877 is a prime.

It is a super-2 number, since 2×86439175909² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86439175939) 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, 395782 + ... + 574039.

It is an arithmetic number, because the mean of its divisors is an integer number (11376012060).

Almost surely, 2^86439175909 is an apocalyptic number.

It is an amenable number.

86439175909 is a deficient number, since it is larger than the sum of its proper divisors (4568920571).

86439175909 is a wasteful number, since it uses less digits than its factorization.

86439175909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974531.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 86439175909 in words is "eighty-six billion, four hundred thirty-nine million, one hundred seventy-five thousand, nine hundred nine".