6801951121 has 18 divisors (see below), whose sum is σ = 7974321090. Its totient is φ = 5785022880.

The previous prime is 6801951119. The next prime is 6801951179. The reversal of 6801951121 is 1211591086.

6801951121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3774750721 + 3027200400 = 61439^2 + 55020^2 .

It is not a de Polignac number, because 6801951121 - 2¹ = 6801951119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6801952121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 836845 + ... + 844933.

Almost surely, 2^6801951121 is an apocalyptic number.

It is an amenable number.

6801951121 is a deficient number, since it is larger than the sum of its proper divisors (1172369969).

6801951121 is an equidigital number, since it uses as much as digits as its factorization.

6801951121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 34.

The square root of 6801951121 is about 82473.9420726329. The cubic root of 6801951121 is about 1894.7176565490.

The spelling of 6801951121 in words is "six billion, eight hundred one million, nine hundred fifty-one thousand, one hundred twenty-one".