6838549221 has 24 divisors (see below), whose sum is σ = 11067897024. Its totient is φ = 3737838720.

The previous prime is 6838549219. The next prime is 6838549273. The reversal of 6838549221 is 1229458386.

It is not a de Polignac number, because 6838549221 - 2¹ = 6838549219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6838549321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007940 + ... + 1014701.

It is an arithmetic number, because the mean of its divisors is an integer number (461162376).

Almost surely, 2^6838549221 is an apocalyptic number.

It is an amenable number.

6838549221 is a deficient number, since it is larger than the sum of its proper divisors (4229347803).

6838549221 is a wasteful number, since it uses less digits than its factorization.

6838549221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022681 (or 2022674 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 6838549221 is about 82695.5211665057. The cubic root of 6838549221 is about 1898.1097748784.

The spelling of 6838549221 in words is "six billion, eight hundred thirty-eight million, five hundred forty-nine thousand, two hundred twenty-one".