38529563993 has 2 divisors, whose sum is σ = 38529563994. Its totient is φ = 38529563992.

The previous prime is 38529563957. The next prime is 38529564013. The reversal of 38529563993 is 39936592583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21631643929 + 16897920064 = 147077^2 + 129992^2 .

It is an emirp because it is prime and its reverse (39936592583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38529563993 - 2¹⁰ = 38529562969 is a prime.

It is not a weakly prime, because it can be changed into another prime (38529563893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19264781996 + 19264781997.

It is an arithmetic number, because the mean of its divisors is an integer number (19264781997).

Almost surely, 2^38529563993 is an apocalyptic number.

It is an amenable number.

38529563993 is a deficient number, since it is larger than the sum of its proper divisors (1).

38529563993 is an equidigital number, since it uses as much as digits as its factorization.

38529563993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47239200, while the sum is 62.

The spelling of 38529563993 in words is "thirty-eight billion, five hundred twenty-nine million, five hundred sixty-three thousand, nine hundred ninety-three".