38966161189 has 2 divisors, whose sum is σ = 38966161190. Its totient is φ = 38966161188.

The previous prime is 38966161187. The next prime is 38966161237. The reversal of 38966161189 is 98116166983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22904400964 + 16061760225 = 151342^2 + 126735^2 .

It is a cyclic number.

It is not a de Polignac number, because 38966161189 - 2¹ = 38966161187 is a prime.

Together with 38966161187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38966161181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19483080594 + 19483080595.

It is an arithmetic number, because the mean of its divisors is an integer number (19483080595).

Almost surely, 2^38966161189 is an apocalyptic number.

It is an amenable number.

38966161189 is a deficient number, since it is larger than the sum of its proper divisors (1).

38966161189 is an equidigital number, since it uses as much as digits as its factorization.

38966161189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 58.

The spelling of 38966161189 in words is "thirty-eight billion, nine hundred sixty-six million, one hundred sixty-one thousand, one hundred eighty-nine".