6740668539 has 48 divisors (see below), whose sum is σ = 10742105088. Its totient is φ = 4039200000.

The previous prime is 6740668511. The next prime is 6740668541. The reversal of 6740668539 is 9358660476.

6740668539 is a `hidden beast` number, since 6 + 7 + 40 + 6 + 68 + 539 = 666.

It is not a de Polignac number, because 6740668539 - 2⁵ = 6740668507 is a prime.

It is a super-2 number, since 2×6740668539² = 90873224705328789042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6740668549) 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 47 ways as a sum of consecutive naturals, for example, 3601774 + ... + 3603644.

It is an arithmetic number, because the mean of its divisors is an integer number (223793856).

Almost surely, 2^6740668539 is an apocalyptic number.

6740668539 is a deficient number, since it is larger than the sum of its proper divisors (4001436549).

6740668539 is a wasteful number, since it uses less digits than its factorization.

6740668539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6740668539 is about 82101.5745220516. The cubic root of 6740668539 is about 1889.0102914321.

The spelling of 6740668539 in words is "six billion, seven hundred forty million, six hundred sixty-eight thousand, five hundred thirty-nine".