2126911806843 has 4 divisors (see below), whose sum is σ = 2835882409128. Its totient is φ = 1417941204560.

The previous prime is 2126911806793. The next prime is 2126911806869. The reversal of 2126911806843 is 3486081196212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2126911806843 - 2⁶ = 2126911806779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126911802843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354485301138 + ... + 354485301143.

It is an arithmetic number, because the mean of its divisors is an integer number (708970602282).

Almost surely, 2^{2126911806843} is an apocalyptic number.

2126911806843 is a deficient number, since it is larger than the sum of its proper divisors (708970602285).

2126911806843 is an equidigital number, since it uses as much as digits as its factorization.

2126911806843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708970602284.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 2126911806843 in words is "two trillion, one hundred twenty-six billion, nine hundred eleven million, eight hundred six thousand, eight hundred forty-three".