4221772543 has 2 divisors, whose sum is σ = 4221772544. Its totient is φ = 4221772542.

The previous prime is 4221772531. The next prime is 4221772589. The reversal of 4221772543 is 3452771224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221772543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221778543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110886271 + 2110886272.

It is an arithmetic number, because the mean of its divisors is an integer number (2110886272).

Almost surely, 2^4221772543 is an apocalyptic number.

4221772543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221772543 is an equidigital number, since it uses as much as digits as its factorization.

4221772543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 37.

The square root of 4221772543 is about 64975.1686646522. The cubic root of 4221772543 is about 1616.2118140843.

The spelling of 4221772543 in words is "four billion, two hundred twenty-one million, seven hundred seventy-two thousand, five hundred forty-three".