38338925687 has 4 divisors (see below), whose sum is σ = 38341310376. Its totient is φ = 38336541000.

The previous prime is 38338925671. The next prime is 38338925693. The reversal of 38338925687 is 78652983383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78652983383 = 13 ⋅6050229491.

It is a cyclic number.

It is not a de Polignac number, because 38338925687 - 2⁴ = 38338925671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38338925617) 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, 1168064 + ... + 1200437.

It is an arithmetic number, because the mean of its divisors is an integer number (9585327594).

Almost surely, 2^38338925687 is an apocalyptic number.

38338925687 is a deficient number, since it is larger than the sum of its proper divisors (2384689).

38338925687 is a wasteful number, since it uses less digits than its factorization.

38338925687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384688.

The product of its digits is 52254720, while the sum is 62.

The spelling of 38338925687 in words is "thirty-eight billion, three hundred thirty-eight million, nine hundred twenty-five thousand, six hundred eighty-seven".