38638368333 has 28 divisors (see below), whose sum is σ = 58146703740. Its totient is φ = 25663023936.

The previous prime is 38638368317. The next prime is 38638368343. The reversal of 38638368333 is 33386383683.

It can be written as a sum of positive squares in 2 ways, for example, as 21884172489 + 16754195844 = 147933^2 + 129438^2 .

It is not a de Polignac number, because 38638368333 - 2⁴ = 38638368317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38638368333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38638368343) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 97585 + ... + 294617.

Almost surely, 2^38638368333 is an apocalyptic number.

It is an amenable number.

38638368333 is a deficient number, since it is larger than the sum of its proper divisors (19508335407).

38638368333 is an equidigital number, since it uses as much as digits as its factorization.

38638368333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197320 (or 197305 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 38638368333 in words is "thirty-eight billion, six hundred thirty-eight million, three hundred sixty-eight thousand, three hundred thirty-three".