4424021424545 has 8 divisors (see below), whose sum is σ = 5621109574824. Its totient is φ = 3331027896064.

The previous prime is 4424021424521. The next prime is 4424021424553. The reversal of 4424021424545 is 5454241204244.

It can be written as a sum of positive squares in 4 ways, for example, as 2391127190929 + 2032894233616 = 1546327^2 + 1425796^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4424021424545 - 2²⁶ = 4423954315681 is a prime.

It is a super-2 number, since 2×4424021424545² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26023655354 + ... + 26023655523.

It is an arithmetic number, because the mean of its divisors is an integer number (702638696853).

Almost surely, 2^{4424021424545} is an apocalyptic number.

It is an amenable number.

4424021424545 is a deficient number, since it is larger than the sum of its proper divisors (1197088150279).

4424021424545 is a wasteful number, since it uses less digits than its factorization.

4424021424545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52047310899.

The product of its (nonzero) digits is 819200, while the sum is 41.

Adding to 4424021424545 its reverse (5454241204244), we get a palindrome (9878262628789).

The spelling of 4424021424545 in words is "four trillion, four hundred twenty-four billion, twenty-one million, four hundred twenty-four thousand, five hundred forty-five".