38416744661 has 2 divisors, whose sum is σ = 38416744662. Its totient is φ = 38416744660.

The previous prime is 38416744643. The next prime is 38416744741. The reversal of 38416744661 is 16644761483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36364201636 + 2052543025 = 190694^2 + 45305^2 .

It is a cyclic number.

It is not a de Polignac number, because 38416744661 - 2¹⁴ = 38416728277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38416744621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19208372330 + 19208372331.

It is an arithmetic number, because the mean of its divisors is an integer number (19208372331).

Almost surely, 2^38416744661 is an apocalyptic number.

It is an amenable number.

38416744661 is a deficient number, since it is larger than the sum of its proper divisors (1).

38416744661 is an equidigital number, since it uses as much as digits as its factorization.

38416744661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 50.

The spelling of 38416744661 in words is "thirty-eight billion, four hundred sixteen million, seven hundred forty-four thousand, six hundred sixty-one".