38040448073 has 2 divisors, whose sum is σ = 38040448074. Its totient is φ = 38040448072.

The previous prime is 38040448051. The next prime is 38040448079. The reversal of 38040448073 is 37084404083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35746708624 + 2293739449 = 189068^2 + 47893^2 .

It is an emirp because it is prime and its reverse (37084404083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38040448073 - 2¹⁸ = 38040185929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38040448073.

It is not a weakly prime, because it can be changed into another prime (38040448079) 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 as a sum of consecutive naturals, namely, 19020224036 + 19020224037.

It is an arithmetic number, because the mean of its divisors is an integer number (19020224037).

Almost surely, 2^38040448073 is an apocalyptic number.

It is an amenable number.

38040448073 is a deficient number, since it is larger than the sum of its proper divisors (1).

38040448073 is an equidigital number, since it uses as much as digits as its factorization.

38040448073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 38040448073 in words is "thirty-eight billion, forty million, four hundred forty-eight thousand, seventy-three".