2139848843 has 4 divisors (see below), whose sum is σ = 2334380568. Its totient is φ = 1945317120.

The previous prime is 2139848833. The next prime is 2139848857. The reversal of 2139848843 is 3488489312.

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 2139848843 - 2⁶ = 2139848779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2139848791 and 2139848800.

It is not an unprimeable number, because it can be changed into a prime (2139848833) 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, 97265846 + ... + 97265867.

It is an arithmetic number, because the mean of its divisors is an integer number (583595142).

Almost surely, 2^2139848843 is an apocalyptic number.

2139848843 is a deficient number, since it is larger than the sum of its proper divisors (194531725).

2139848843 is a wasteful number, since it uses less digits than its factorization.

2139848843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194531724.

The product of its digits is 1327104, while the sum is 50.

The square root of 2139848843 is about 46258.5002242831. The cubic root of 2139848843 is about 1288.6284007390.

The spelling of 2139848843 in words is "two billion, one hundred thirty-nine million, eight hundred forty-eight thousand, eight hundred forty-three".