424442445145 has 4 divisors (see below), whose sum is σ = 509330934180. Its totient is φ = 339553956112.

The previous prime is 424442445139. The next prime is 424442445157. The reversal of 424442445145 is 541544244424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 83185519561 + 341256925584 = 288419^2 + 584172^2 .

It is a cyclic number.

It is not a de Polignac number, because 424442445145 - 2³ = 424442445137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42444244510 + ... + 42444244519.

It is an arithmetic number, because the mean of its divisors is an integer number (127332733545).

Almost surely, 2^424442445145 is an apocalyptic number.

It is an amenable number.

424442445145 is a deficient number, since it is larger than the sum of its proper divisors (84888489035).

424442445145 is an equidigital number, since it uses as much as digits as its factorization.

424442445145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84888489034.

The product of its digits is 1638400, while the sum is 43.

Adding to 424442445145 its reverse (541544244424), we get a palindrome (965986689569).

The spelling of 424442445145 in words is "four hundred twenty-four billion, four hundred forty-two million, four hundred forty-five thousand, one hundred forty-five".