6740673406668 has 18 divisors (see below), whose sum is σ = 17038924444724. Its totient is φ = 2246891135544.

The previous prime is 6740673406661. The next prime is 6740673406669. The reversal of 6740673406668 is 8666043760476.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×6740673406668² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6740673406661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93620463946 + ... + 93620464017.

Almost surely, 2^{6740673406668} is an apocalyptic number.

It is an amenable number.

6740673406668 is an abundant number, since it is smaller than the sum of its proper divisors (10298251038056).

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

6740673406668 is a wasteful number, since it uses less digits than its factorization.

6740673406668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187240927973 (or 187240927968 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 63.

The spelling of 6740673406668 in words is "six trillion, seven hundred forty billion, six hundred seventy-three million, four hundred six thousand, six hundred sixty-eight".