38213045161 has 2 divisors, whose sum is σ = 38213045162. Its totient is φ = 38213045160.

The previous prime is 38213045153. The next prime is 38213045203. The reversal of 38213045161 is 16154031283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37954832400 + 258212761 = 194820^2 + 16069^2 .

It is a cyclic number.

It is not a de Polignac number, because 38213045161 - 2³ = 38213045153 is a prime.

It is not a weakly prime, because it can be changed into another prime (38213075161) 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, 19106522580 + 19106522581.

It is an arithmetic number, because the mean of its divisors is an integer number (19106522581).

Almost surely, 2^38213045161 is an apocalyptic number.

It is an amenable number.

38213045161 is a deficient number, since it is larger than the sum of its proper divisors (1).

38213045161 is an equidigital number, since it uses as much as digits as its factorization.

38213045161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 38213045161 in words is "thirty-eight billion, two hundred thirteen million, forty-five thousand, one hundred sixty-one".