86173023858 has 32 divisors (see below), whose sum is σ = 174061180800. Its totient is φ = 28439727360.

The previous prime is 86173023857. The next prime is 86173023863. The reversal of 86173023858 is 85832037168.

It is a self number, because there is not a number n which added to its sum of digits gives 86173023858.

It is not an unprimeable number, because it can be changed into a prime (86173023857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123066 + ... + 433002.

It is an arithmetic number, because the mean of its divisors is an integer number (5439411900).

Almost surely, 2^86173023858 is an apocalyptic number.

86173023858 is an abundant number, since it is smaller than the sum of its proper divisors (87888156942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86173023858 is a wasteful number, since it uses less digits than its factorization.

86173023858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310402.

The product of its (nonzero) digits is 1935360, while the sum is 51.

It can be divided in two parts, 861730 and 23858, that added together give a palindrome (885588).

The spelling of 86173023858 in words is "eighty-six billion, one hundred seventy-three million, twenty-three thousand, eight hundred fifty-eight".