44138037012539 has 2 divisors, whose sum is σ = 44138037012540. Its totient is φ = 44138037012538.

The previous prime is 44138037012463. The next prime is 44138037012547. The reversal of 44138037012539 is 93521073083144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44138037012539 is a prime.

It is a super-2 number, since 2×44138037012539² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44138037018539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22069018506269 + 22069018506270.

It is an arithmetic number, because the mean of its divisors is an integer number (22069018506270).

Almost surely, 2^{44138037012539} is an apocalyptic number.

44138037012539 is a deficient number, since it is larger than the sum of its proper divisors (1).

44138037012539 is an equidigital number, since it uses as much as digits as its factorization.

44138037012539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 44138037012539 in words is "forty-four trillion, one hundred thirty-eight billion, thirty-seven million, twelve thousand, five hundred thirty-nine".