501442040443 has 8 divisors (see below), whose sum is σ = 513736198976. Its totient is φ = 489176641800.

The previous prime is 501442040339. The next prime is 501442040467. The reversal of 501442040443 is 344040244105.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501442040443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501442740443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7154673 + ... + 7224418.

It is an arithmetic number, because the mean of its divisors is an integer number (64217024872).

Almost surely, 2^501442040443 is an apocalyptic number.

501442040443 is a deficient number, since it is larger than the sum of its proper divisors (12294158533).

501442040443 is a wasteful number, since it uses less digits than its factorization.

501442040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14379945.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 501442040443 its reverse (344040244105), we get a palindrome (845482284548).

The spelling of 501442040443 in words is "five hundred one billion, four hundred forty-two million, forty thousand, four hundred forty-three".