2136718843 has 8 divisors (see below), whose sum is σ = 2491800800. Its totient is φ = 1831473000.

The previous prime is 2136718823. The next prime is 2136718847. The reversal of 2136718843 is 3488176312.

It is not a de Polignac number, because 2136718843 - 2²¹ = 2134621691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136718843.

It is not an unprimeable number, because it can be changed into a prime (2136718847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3114408 + ... + 3115093.

It is an arithmetic number, because the mean of its divisors is an integer number (311475100).

Almost surely, 2^2136718843 is an apocalyptic number.

2136718843 is a deficient number, since it is larger than the sum of its proper divisors (355081957).

2136718843 is an frugal number, since it uses more digits than its factorization.

2136718843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229522 (or 6229508 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 2136718843 is about 46224.6562237081. The cubic root of 2136718843 is about 1287.9997932419. Note that the first 3 decimals are identical.

The spelling of 2136718843 in words is "two billion, one hundred thirty-six million, seven hundred eighteen thousand, eight hundred forty-three".