4218686671 has 2 divisors, whose sum is σ = 4218686672. Its totient is φ = 4218686670.

The previous prime is 4218686639. The next prime is 4218686713. The reversal of 4218686671 is 1766868124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4218686671 - 2⁵ = 4218686639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4218606671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109343335 + 2109343336.

It is an arithmetic number, because the mean of its divisors is an integer number (2109343336).

Almost surely, 2^4218686671 is an apocalyptic number.

4218686671 is a deficient number, since it is larger than the sum of its proper divisors (1).

4218686671 is an equidigital number, since it uses as much as digits as its factorization.

4218686671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 4218686671 is about 64951.4177751341. The cubic root of 4218686671 is about 1615.8179322571.

The spelling of 4218686671 in words is "four billion, two hundred eighteen million, six hundred eighty-six thousand, six hundred seventy-one".