6742886643 has 12 divisors (see below), whose sum is σ = 9743898528. Its totient is φ = 4493331600.

The previous prime is 6742886639. The next prime is 6742886651. The reversal of 6742886643 is 3466882476.

6742886643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6742886643 - 2² = 6742886639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6742886643.

It is not an unprimeable number, because it can be changed into a prime (6742886603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138180 + ... + 180497.

It is an arithmetic number, because the mean of its divisors is an integer number (811991544).

Almost surely, 2^6742886643 is an apocalyptic number.

6742886643 is a deficient number, since it is larger than the sum of its proper divisors (3001011885).

6742886643 is a wasteful number, since it uses less digits than its factorization.

6742886643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321034 (or 321031 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 6742886643 is about 82115.0817024498. The cubic root of 6742886643 is about 1889.2174697829.

The spelling of 6742886643 in words is "six billion, seven hundred forty-two million, eight hundred eighty-six thousand, six hundred forty-three".