6833649139 has 4 divisors (see below), whose sum is σ = 6992571256. Its totient is φ = 6674727024.

The previous prime is 6833649131. The next prime is 6833649197. The reversal of 6833649139 is 9319463386.

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 6833649139 - 2³ = 6833649131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6833649131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79460994 + ... + 79461079.

It is an arithmetic number, because the mean of its divisors is an integer number (1748142814).

Almost surely, 2^6833649139 is an apocalyptic number.

6833649139 is a deficient number, since it is larger than the sum of its proper divisors (158922117).

6833649139 is a wasteful number, since it uses less digits than its factorization.

6833649139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158922116.

The product of its digits is 2519424, while the sum is 52.

The square root of 6833649139 is about 82665.8886058814. Note that the first 3 decimals coincide. The cubic root of 6833649139 is about 1897.6563104759.

The spelling of 6833649139 in words is "six billion, eight hundred thirty-three million, six hundred forty-nine thousand, one hundred thirty-nine".