4221868959 has 180 divisors, whose sum is σ = 8255709000. Its totient is φ = 2141536320.

The previous prime is 4221868943. The next prime is 4221868967. The reversal of 4221868959 is 9598681224.

It is a happy number.

It is not a de Polignac number, because 4221868959 - 2⁴ = 4221868943 is a prime.

Its product of digits (2488320) is a multiple of the sum of its prime factors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221868919) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 28334617 + ... + 28334765.

It is an arithmetic number, because the mean of its divisors is an integer number (45865050).

Almost surely, 2^4221868959 is an apocalyptic number.

4221868959 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4221868959 is a deficient number, since it is larger than the sum of its proper divisors (4033840041).

4221868959 is a wasteful number, since it uses less digits than its factorization.

4221868959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 229 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 4221868959 is about 64975.9106053928. The cubic root of 4221868959 is about 1616.2241175651.

The spelling of 4221868959 in words is "four billion, two hundred twenty-one million, eight hundred sixty-eight thousand, nine hundred fifty-nine".