4218045866 has 16 divisors (see below), whose sum is σ = 6700941600. Its totient is φ = 1985761008.

The previous prime is 4218045859. The next prime is 4218045869. The reversal of 4218045866 is 6685408124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4218045869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334301 + ... + 346688.

It is an arithmetic number, because the mean of its divisors is an integer number (418808850).

Almost surely, 2^4218045866 is an apocalyptic number.

4218045866 is a deficient number, since it is larger than the sum of its proper divisors (2482895734).

4218045866 is a wasteful number, since it uses less digits than its factorization.

4218045866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681173.

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 4218045866 is about 64946.4846315796. The cubic root of 4218045866 is about 1615.7361155907.

The spelling of 4218045866 in words is "four billion, two hundred eighteen million, forty-five thousand, eight hundred sixty-six".