6840005741 has 8 divisors (see below), whose sum is σ = 6867640824. Its totient is φ = 6812421120.

The previous prime is 6840005693. The next prime is 6840005749. The reversal of 6840005741 is 1475000486.

It can be written as a sum of positive squares in 4 ways, for example, as 286455625 + 6553550116 = 16925^2 + 80954^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6840005741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840005749) 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, 271805 + ... + 295901.

It is an arithmetic number, because the mean of its divisors is an integer number (858455103).

Almost surely, 2^6840005741 is an apocalyptic number.

It is an amenable number.

6840005741 is a deficient number, since it is larger than the sum of its proper divisors (27635083).

6840005741 is a wasteful number, since it uses less digits than its factorization.

6840005741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25231.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 6840005741 is about 82704.3272205270. The cubic root of 6840005741 is about 1898.2445226885.

The spelling of 6840005741 in words is "six billion, eight hundred forty million, five thousand, seven hundred forty-one".