105204486138 has 16 divisors (see below), whose sum is σ = 210533274336. Its totient is φ = 35047445040.

The previous prime is 105204486113. The next prime is 105204486143. The reversal of 105204486138 is 831684402501.

It is a happy number.

It is a super-2 number, since 2×105204486138² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105204486138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5168248 + ... + 5188563.

It is an arithmetic number, because the mean of its divisors is an integer number (13158329646).

Almost surely, 2^105204486138 is an apocalyptic number.

105204486138 is an abundant number, since it is smaller than the sum of its proper divisors (105328788198).

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

105204486138 is a wasteful number, since it uses less digits than its factorization.

105204486138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358509.

The product of its (nonzero) digits is 184320, while the sum is 42.

Adding to 105204486138 its reverse (831684402501), we get a palindrome (936888888639).

The spelling of 105204486138 in words is "one hundred five billion, two hundred four million, four hundred eighty-six thousand, one hundred thirty-eight".