2186343026811 has 12 divisors (see below), whose sum is σ = 3171604908888. Its totient is φ = 1451306385504.

The previous prime is 2186343026783. The next prime is 2186343026851. The reversal of 2186343026811 is 1186203436812.

2186343026811 is a `hidden beast` number, since 2 + 1 + 8 + 634 + 3 + 0 + 2 + 6 + 8 + 1 + 1 = 666.

It is not a de Polignac number, because 2186343026811 - 2⁵ = 2186343026779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2186343026851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521300485 + ... + 521304678.

It is an arithmetic number, because the mean of its divisors is an integer number (264300409074).

Almost surely, 2^{2186343026811} is an apocalyptic number.

2186343026811 is a deficient number, since it is larger than the sum of its proper divisors (985261882077).

2186343026811 is a wasteful number, since it uses less digits than its factorization.

2186343026811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042605402 (or 1042605399 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 2186343026811 in words is "two trillion, one hundred eighty-six billion, three hundred forty-three million, twenty-six thousand, eight hundred eleven".