42444464647641 has 16 divisors (see below), whose sum is σ = 66907530480000. Its totient is φ = 23417635667328.

The previous prime is 42444464647631. The next prime is 42444464647649. The reversal of 42444464647641 is 14674646444424.

It is not a de Polignac number, because 42444464647641 - 2⁷ = 42444464647513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42444464647649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34847671516 + ... + 34847672733.

It is an arithmetic number, because the mean of its divisors is an integer number (4181720655000).

Almost surely, 2^{42444464647641} is an apocalyptic number.

It is an amenable number.

42444464647641 is a deficient number, since it is larger than the sum of its proper divisors (24463065832359).

42444464647641 is a wasteful number, since it uses less digits than its factorization.

42444464647641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69695344288.

The product of its digits is 198180864, while the sum is 60.

The spelling of 42444464647641 in words is "forty-two trillion, four hundred forty-four billion, four hundred sixty-four million, six hundred forty-seven thousand, six hundred forty-one".