6828989121 has 8 divisors (see below), whose sum is σ = 10117020960. Its totient is φ = 4552659396.

The previous prime is 6828989119. The next prime is 6828989159. The reversal of 6828989121 is 1219898286.

It is not a de Polignac number, because 6828989121 - 2¹ = 6828989119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6828989621) 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, 126462735 + ... + 126462788.

It is an arithmetic number, because the mean of its divisors is an integer number (1264627620).

Almost surely, 2^6828989121 is an apocalyptic number.

It is an amenable number.

6828989121 is a deficient number, since it is larger than the sum of its proper divisors (3288031839).

6828989121 is a wasteful number, since it uses less digits than its factorization.

6828989121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252925532 (or 252925526 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 6828989121 is about 82637.6979410729. The cubic root of 6828989121 is about 1897.2248609799.

The spelling of 6828989121 in words is "six billion, eight hundred twenty-eight million, nine hundred eighty-nine thousand, one hundred twenty-one".