4042444435541 has 4 divisors (see below), whose sum is σ = 4044706577472. Its totient is φ = 4040182293612.

The previous prime is 4042444435529. The next prime is 4042444435553. The reversal of 4042444435541 is 1455344442404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4042444435529) and next prime (4042444435553).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042444435541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4042444435492 and 4042444435501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042444405541) by changing a digit.

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, 1131068285 + ... + 1131071858.

It is an arithmetic number, because the mean of its divisors is an integer number (1011176644368).

Almost surely, 2^{4042444435541} is an apocalyptic number.

It is an amenable number.

4042444435541 is a deficient number, since it is larger than the sum of its proper divisors (2262141931).

4042444435541 is a wasteful number, since it uses less digits than its factorization.

4042444435541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262141930.

The product of its (nonzero) digits is 2457600, while the sum is 44.

Adding to 4042444435541 its reverse (1455344442404), we get a palindrome (5497788877945).

The spelling of 4042444435541 in words is "four trillion, forty-two billion, four hundred forty-four million, four hundred thirty-five thousand, five hundred forty-one".