38453422181 has 2 divisors, whose sum is σ = 38453422182. Its totient is φ = 38453422180.

The previous prime is 38453422159. The next prime is 38453422199. The reversal of 38453422181 is 18122435483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28896600100 + 9556822081 = 169990^2 + 97759^2 .

It is a cyclic number.

It is not a de Polignac number, because 38453422181 - 2³⁰ = 37379680357 is a prime.

It is a super-2 number, since 2×38453422181² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38453422121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19226711090 + 19226711091.

It is an arithmetic number, because the mean of its divisors is an integer number (19226711091).

Almost surely, 2^38453422181 is an apocalyptic number.

It is an amenable number.

38453422181 is a deficient number, since it is larger than the sum of its proper divisors (1).

38453422181 is an equidigital number, since it uses as much as digits as its factorization.

38453422181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 41.

The spelling of 38453422181 in words is "thirty-eight billion, four hundred fifty-three million, four hundred twenty-two thousand, one hundred eighty-one".