6686412741 has 12 divisors (see below), whose sum is σ = 9665592300. Its totient is φ = 4454174400.

The previous prime is 6686412679. The next prime is 6686412779. The reversal of 6686412741 is 1472146866.

It can be written as a sum of positive squares in 2 ways, for example, as 3191120100 + 3495292641 = 56490^2 + 59121^2 .

It is not a de Polignac number, because 6686412741 - 2¹⁷ = 6686281669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6686482741) 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 11 ways as a sum of consecutive naturals, for example, 273816 + ... + 297233.

It is an arithmetic number, because the mean of its divisors is an integer number (805466025).

Almost surely, 2^6686412741 is an apocalyptic number.

It is an amenable number.

6686412741 is a deficient number, since it is larger than the sum of its proper divisors (2979179559).

6686412741 is a wasteful number, since it uses less digits than its factorization.

6686412741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572356 (or 572353 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 6686412741 is about 81770.4882032632. The cubic root of 6686412741 is about 1883.9284029278.

The spelling of 6686412741 in words is "six billion, six hundred eighty-six million, four hundred twelve thousand, seven hundred forty-one".