6743661568 has 44 divisors (see below), whose sum is σ = 15406573552. Its totient is φ = 2890137600.

The previous prime is 6743661563. The next prime is 6743661581. The reversal of 6743661568 is 8651663476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6743661563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463233 + ... + 477568.

Almost surely, 2^6743661568 is an apocalyptic number.

It is an amenable number.

6743661568 is an abundant number, since it is smaller than the sum of its proper divisors (8662911984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6743661568 is an equidigital number, since it uses as much as digits as its factorization.

6743661568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940828 (or 940810 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 6743661568 is about 82119.8000971751. The cubic root of 6743661568 is about 1889.2898396667.

The spelling of 6743661568 in words is "six billion, seven hundred forty-three million, six hundred sixty-one thousand, five hundred sixty-eight".