6421674068 has 12 divisors (see below), whose sum is σ = 11271883392. Its totient is φ = 3201135960.

The previous prime is 6421674067. The next prime is 6421674079. The reversal of 6421674068 is 8604761246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421674067) 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, 2423780 + ... + 2426427.

It is an arithmetic number, because the mean of its divisors is an integer number (939323616).

Almost surely, 2^6421674068 is an apocalyptic number.

It is an amenable number.

6421674068 is a deficient number, since it is larger than the sum of its proper divisors (4850209324).

6421674068 is a wasteful number, since it uses less digits than its factorization.

6421674068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850542 (or 4850540 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 6421674068 is about 80135.3484300156. The cubic root of 6421674068 is about 1858.7290492727.

The spelling of 6421674068 in words is "six billion, four hundred twenty-one million, six hundred seventy-four thousand, sixty-eight".