38668411121 has 2 divisors, whose sum is σ = 38668411122. Its totient is φ = 38668411120.

The previous prime is 38668411091. The next prime is 38668411183. The reversal of 38668411121 is 12111486683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33811854400 + 4856556721 = 183880^2 + 69689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38668411121 is a prime.

It is not a weakly prime, because it can be changed into another prime (38668411921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19334205560 + 19334205561.

It is an arithmetic number, because the mean of its divisors is an integer number (19334205561).

Almost surely, 2^38668411121 is an apocalyptic number.

It is an amenable number.

38668411121 is a deficient number, since it is larger than the sum of its proper divisors (1).

38668411121 is an equidigital number, since it uses as much as digits as its factorization.

38668411121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The spelling of 38668411121 in words is "thirty-eight billion, six hundred sixty-eight million, four hundred eleven thousand, one hundred twenty-one".