4065522443 has 4 divisors (see below), whose sum is σ = 4304670840. Its totient is φ = 3826374048.

The previous prime is 4065522437. The next prime is 4065522509. The reversal of 4065522443 is 3442255604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4065522443 - 2¹⁶ = 4065456907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065122443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119574173 + ... + 119574206.

It is an arithmetic number, because the mean of its divisors is an integer number (1076167710).

Almost surely, 2^4065522443 is an apocalyptic number.

4065522443 is a deficient number, since it is larger than the sum of its proper divisors (239148397).

4065522443 is a wasteful number, since it uses less digits than its factorization.

4065522443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239148396.

The product of its (nonzero) digits is 115200, while the sum is 35.

The square root of 4065522443 is about 63761.4495051673. The cubic root of 4065522443 is about 1596.0216844257.

The spelling of 4065522443 in words is "four billion, sixty-five million, five hundred twenty-two thousand, four hundred forty-three".