6808757644 has 12 divisors (see below), whose sum is σ = 12831889504. Its totient is φ = 3142503504.

The previous prime is 6808757617. The next prime is 6808757647. The reversal of 6808757644 is 4467578086.

It is not an unprimeable number, because it can be changed into a prime (6808757647) 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 3 ways as a sum of consecutive naturals, for example, 65468772 + ... + 65468875.

Almost surely, 2^6808757644 is an apocalyptic number.

It is an amenable number.

6808757644 is a deficient number, since it is larger than the sum of its proper divisors (6023131860).

6808757644 is a wasteful number, since it uses less digits than its factorization.

6808757644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130937664 (or 130937662 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 55.

The square root of 6808757644 is about 82515.1964428371. The cubic root of 6808757644 is about 1895.3494429176.

The spelling of 6808757644 in words is "six billion, eight hundred eight million, seven hundred fifty-seven thousand, six hundred forty-four".