38388368833 has 2 divisors, whose sum is σ = 38388368834. Its totient is φ = 38388368832.

The previous prime is 38388368807. The next prime is 38388368857. The reversal of 38388368833 is 33886388383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34578146304 + 3810222529 = 185952^2 + 61727^2 .

It is an emirp because it is prime and its reverse (33886388383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38388368833 is a prime.

It is not a weakly prime, because it can be changed into another prime (38388368803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19194184416 + 19194184417.

It is an arithmetic number, because the mean of its divisors is an integer number (19194184417).

Almost surely, 2^38388368833 is an apocalyptic number.

It is an amenable number.

38388368833 is a deficient number, since it is larger than the sum of its proper divisors (1).

38388368833 is an equidigital number, since it uses as much as digits as its factorization.

38388368833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47775744, while the sum is 61.

The spelling of 38388368833 in words is "thirty-eight billion, three hundred eighty-eight million, three hundred sixty-eight thousand, eight hundred thirty-three".