38538181868539 has 2 divisors, whose sum is σ = 38538181868540. Its totient is φ = 38538181868538.

The previous prime is 38538181868429. The next prime is 38538181868579. The reversal of 38538181868539 is 93586818183583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38538181868539 - 2⁷ = 38538181868411 is a prime.

It is not a weakly prime, because it can be changed into another prime (38538181868579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19269090934269 + 19269090934270.

It is an arithmetic number, because the mean of its divisors is an integer number (19269090934270).

Almost surely, 2^{38538181868539} is an apocalyptic number.

38538181868539 is a deficient number, since it is larger than the sum of its proper divisors (1).

38538181868539 is an equidigital number, since it uses as much as digits as its factorization.

38538181868539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1194393600, while the sum is 76.

The spelling of 38538181868539 in words is "thirty-eight trillion, five hundred thirty-eight billion, one hundred eighty-one million, eight hundred sixty-eight thousand, five hundred thirty-nine".