2186000109138 has 32 divisors (see below), whose sum is σ = 4830445259136. Its totient is φ = 655986391808.

The previous prime is 2186000109133. The next prime is 2186000109151. The reversal of 2186000109138 is 8319010006812.

It is a super-2 number, since 2×2186000109138² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2186000109096 and 2186000109105.

It is not an unprimeable number, because it can be changed into a prime (2186000109133) 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, 465897081 + ... + 465901772.

It is an arithmetic number, because the mean of its divisors is an integer number (150951414348).

Almost surely, 2^{2186000109138} is an apocalyptic number.

2186000109138 is an abundant number, since it is smaller than the sum of its proper divisors (2644445149998).

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

2186000109138 is a wasteful number, since it uses less digits than its factorization.

2186000109138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931798898.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 2186000109138 in words is "two trillion, one hundred eighty-six billion, one hundred nine thousand, one hundred thirty-eight".