4218075668 has 12 divisors (see below), whose sum is σ = 7428650292. Its totient is φ = 2095604160.

The previous prime is 4218075647. The next prime is 4218075671. The reversal of 4218075668 is 8665708124.

It can be written as a sum of positive squares in 2 ways, for example, as 2356325764 + 1861749904 = 48542^2 + 43148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3357713 + ... + 3358968.

It is an arithmetic number, because the mean of its divisors is an integer number (619054191).

Almost surely, 2^4218075668 is an apocalyptic number.

It is an amenable number.

4218075668 is a deficient number, since it is larger than the sum of its proper divisors (3210574624).

4218075668 is a wasteful number, since it uses less digits than its factorization.

4218075668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716842 (or 6716840 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 4218075668 is about 64946.7140662251. The cubic root of 4218075668 is about 1615.7399208326.

The spelling of 4218075668 in words is "four billion, two hundred eighteen million, seventy-five thousand, six hundred sixty-eight".