44138037012542 has 8 divisors (see below), whose sum is σ = 72225878747832. Its totient is φ = 20062744096600.

The previous prime is 44138037012539. The next prime is 44138037012547. The reversal of 44138037012542 is 24521073083144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×44138037012542² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44138037012493 and 44138037012502.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003137204809 + ... + 1003137204852.

It is an arithmetic number, because the mean of its divisors is an integer number (9028234843479).

Almost surely, 2^{44138037012542} is an apocalyptic number.

44138037012542 is a deficient number, since it is larger than the sum of its proper divisors (28087841735290).

44138037012542 is a wasteful number, since it uses less digits than its factorization.

44138037012542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006274409674.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 44138037012542 in words is "forty-four trillion, one hundred thirty-eight billion, thirty-seven million, twelve thousand, five hundred forty-two".