6831888121 has 16 divisors (see below), whose sum is σ = 7447867200. Its totient is φ = 6242056128.

The previous prime is 6831888113. The next prime is 6831888149. The reversal of 6831888121 is 1218881386.

It is a cyclic number.

It is not a de Polignac number, because 6831888121 - 2³ = 6831888113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6831888101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515251 + ... + 528343.

It is an arithmetic number, because the mean of its divisors is an integer number (465491700).

Almost surely, 2^6831888121 is an apocalyptic number.

It is an amenable number.

6831888121 is a deficient number, since it is larger than the sum of its proper divisors (615979079).

6831888121 is a wasteful number, since it uses less digits than its factorization.

6831888121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088.

The product of its digits is 147456, while the sum is 46.

The square root of 6831888121 is about 82655.2365007808. The cubic root of 6831888121 is about 1897.4932890334.

The spelling of 6831888121 in words is "six billion, eight hundred thirty-one million, eight hundred eighty-eight thousand, one hundred twenty-one".