6840063941 has 4 divisors (see below), whose sum is σ = 7024930572. Its totient is φ = 6655197312.

The previous prime is 6840063911. The next prime is 6840063961. The reversal of 6840063941 is 1493600486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2555706916 + 4284357025 = 50554^2 + 65455^2 .

It is a cyclic number.

It is not a de Polignac number, because 6840063941 - 2¹⁰ = 6840062917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840063911) 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, 92433260 + ... + 92433333.

It is an arithmetic number, because the mean of its divisors is an integer number (1756232643).

Almost surely, 2^6840063941 is an apocalyptic number.

It is an amenable number.

6840063941 is a deficient number, since it is larger than the sum of its proper divisors (184866631).

6840063941 is a wasteful number, since it uses less digits than its factorization.

6840063941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184866630.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6840063941 is about 82704.6790756122. The cubic root of 6840063941 is about 1898.2499065786.

The spelling of 6840063941 in words is "six billion, eight hundred forty million, sixty-three thousand, nine hundred forty-one".