44138037012543 has 24 divisors (see below), whose sum is σ = 64707014938800. Its totient is φ = 28985946764544.

The previous prime is 44138037012539. The next prime is 44138037012547. The reversal of 44138037012543 is 34521073083144.

It is a happy number.

44138037012543 is a `hidden beast` number, since 4 + 4 + 1 + 38 + 0 + 3 + 70 + 1 + 2 + 543 = 666.

It is an interprime number because it is at equal distance from previous prime (44138037012539) and next prime (44138037012547).

It is not a de Polignac number, because 44138037012543 - 2² = 44138037012539 is a prime.

It is a super-2 number, since 2×44138037012543² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44138037012547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115904893 + ... + 116285081.

It is an arithmetic number, because the mean of its divisors is an integer number (2696125622450).

Almost surely, 2^{44138037012543} is an apocalyptic number.

44138037012543 is a deficient number, since it is larger than the sum of its proper divisors (20568977926257).

44138037012543 is a wasteful number, since it uses less digits than its factorization.

44138037012543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572791 (or 572788 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 44138037012543 in words is "forty-four trillion, one hundred thirty-eight billion, thirty-seven million, twelve thousand, five hundred forty-three".