38816223938 has 6 divisors (see below), whose sum is σ = 58224753849. Its totient is φ = 19407972656.

The previous prime is 38816223923. The next prime is 38816223977. The reversal of 38816223938 is 83932261883.

It can be written as a sum of positive squares in 2 ways, for example, as 32391720529 + 6424503409 = 179977^2 + 80153^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=139313.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38816223938.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 208970 + ... + 348282.

Almost surely, 2^38816223938 is an apocalyptic number.

38816223938 is a deficient number, since it is larger than the sum of its proper divisors (19408529911).

38816223938 is an frugal number, since it uses more digits than its factorization.

38816223938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278628 (or 139315 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 38816223938 in words is "thirty-eight billion, eight hundred sixteen million, two hundred twenty-three thousand, nine hundred thirty-eight".