38338659861 has 4 divisors (see below), whose sum is σ = 51118213152. Its totient is φ = 25559106572.

The previous prime is 38338659841. The next prime is 38338659869. The reversal of 38338659861 is 16895683383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38338659861 - 2⁹ = 38338659349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38338659795 and 38338659804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38338659869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6389776641 + ... + 6389776646.

It is an arithmetic number, because the mean of its divisors is an integer number (12779553288).

Almost surely, 2^38338659861 is an apocalyptic number.

It is an amenable number.

38338659861 is a deficient number, since it is larger than the sum of its proper divisors (12779553291).

38338659861 is a wasteful number, since it uses less digits than its factorization.

38338659861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779553290.

The product of its digits is 22394880, while the sum is 60.

The spelling of 38338659861 in words is "thirty-eight billion, three hundred thirty-eight million, six hundred fifty-nine thousand, eight hundred sixty-one".