38028661193 has 2 divisors, whose sum is σ = 38028661194. Its totient is φ = 38028661192.

The previous prime is 38028661189. The next prime is 38028661201. The reversal of 38028661193 is 39116682083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20332478464 + 17696182729 = 142592^2 + 133027^2 .

It is a cyclic number.

It is not a de Polignac number, because 38028661193 - 2² = 38028661189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38028661493) 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, 19014330596 + 19014330597.

It is an arithmetic number, because the mean of its divisors is an integer number (19014330597).

Almost surely, 2^38028661193 is an apocalyptic number.

It is an amenable number.

38028661193 is a deficient number, since it is larger than the sum of its proper divisors (1).

38028661193 is an equidigital number, since it uses as much as digits as its factorization.

38028661193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 38028661193 in words is "thirty-eight billion, twenty-eight million, six hundred sixty-one thousand, one hundred ninety-three".