6839040261 has 8 divisors (see below), whose sum is σ = 9221178240. Its totient is φ = 4508131232.

The previous prime is 6839040239. The next prime is 6839040269. The reversal of 6839040261 is 1620409386.

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

It is a cyclic number.

It is not a de Polignac number, because 6839040261 - 2⁹ = 6839039749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6839040269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12806925 + ... + 12807458.

It is an arithmetic number, because the mean of its divisors is an integer number (1152647280).

Almost surely, 2^6839040261 is an apocalyptic number.

It is an amenable number.

6839040261 is a deficient number, since it is larger than the sum of its proper divisors (2382137979).

6839040261 is a wasteful number, since it uses less digits than its factorization.

6839040261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25614475.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 6839040261 is about 82698.4900769053. The cubic root of 6839040261 is about 1898.1552048610.

The spelling of 6839040261 in words is "six billion, eight hundred thirty-nine million, forty thousand, two hundred sixty-one".