38655018993 has 8 divisors (see below), whose sum is σ = 52512478848. Its totient is φ = 25283785904.

The previous prime is 38655018979. The next prime is 38655019003. The reversal of 38655018993 is 39981055683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38655018993 - 2⁸ = 38655018737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38655010993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121556505 + ... + 121556822.

It is an arithmetic number, because the mean of its divisors is an integer number (6564059856).

Almost surely, 2^38655018993 is an apocalyptic number.

It is an amenable number.

38655018993 is a deficient number, since it is larger than the sum of its proper divisors (13857459855).

38655018993 is a wasteful number, since it uses less digits than its factorization.

38655018993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243113383.

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 38655018993 in words is "thirty-eight billion, six hundred fifty-five million, eighteen thousand, nine hundred ninety-three".