105531538028 has 24 divisors (see below), whose sum is σ = 211292793600. Its totient is φ = 45178576848.

The previous prime is 105531538019. The next prime is 105531538051. The reversal of 105531538028 is 820835135501.

It is a super-2 number, since 2×105531538028² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024858 + ... + 2076321.

It is an arithmetic number, because the mean of its divisors is an integer number (8803866400).

Almost surely, 2^105531538028 is an apocalyptic number.

It is an amenable number.

105531538028 is an abundant number, since it is smaller than the sum of its proper divisors (105761255572).

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

105531538028 is a wasteful number, since it uses less digits than its factorization.

105531538028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102109 (or 4102107 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 105531538028 in words is "one hundred five billion, five hundred thirty-one million, five hundred thirty-eight thousand, twenty-eight".