42040044224641 has 16 divisors (see below), whose sum is σ = 44696902149504. Its totient is φ = 39452317425664.

The previous prime is 42040044224627. The next prime is 42040044224677. The reversal of 42040044224641 is 14642244004024.

It is a cyclic number.

It is not a de Polignac number, because 42040044224641 - 2¹¹ = 42040044222593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42040044224641.

It is not an unprimeable number, because it can be changed into a prime (42040044228641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41761665 + ... + 42756481.

It is an arithmetic number, because the mean of its divisors is an integer number (2793556384344).

Almost surely, 2^{42040044224641} is an apocalyptic number.

It is an amenable number.

42040044224641 is a deficient number, since it is larger than the sum of its proper divisors (2656857924863).

42040044224641 is a wasteful number, since it uses less digits than its factorization.

42040044224641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029560.

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 42040044224641 its reverse (14642244004024), we get a palindrome (56682288228665).

The spelling of 42040044224641 in words is "forty-two trillion, forty billion, forty-four million, two hundred twenty-four thousand, six hundred forty-one".