42440004312544 has 48 divisors (see below), whose sum is σ = 83671449479856. Its totient is φ = 21190128947200.

The previous prime is 42440004312499. The next prime is 42440004312583. The reversal of 42440004312544 is 44521340004424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82301274 + ... + 82815334.

It is an arithmetic number, because the mean of its divisors is an integer number (1743155197497).

Almost surely, 2^{42440004312544} is an apocalyptic number.

It is an amenable number.

42440004312544 is a deficient number, since it is larger than the sum of its proper divisors (41231445167312).

42440004312544 is a wasteful number, since it uses less digits than its factorization.

42440004312544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517699 (or 517691 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 42440004312544 its reverse (44521340004424), we get a palindrome (86961344316968).

The spelling of 42440004312544 in words is "forty-two trillion, four hundred forty billion, four million, three hundred twelve thousand, five hundred forty-four".