38158867838 has 16 divisors (see below), whose sum is σ = 70447140960. Its totient is φ = 15095815776.

The previous prime is 38158867837. The next prime is 38158867883. The reversal of 38158867838 is 83876885183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38158867837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104831873 + ... + 104832236.

It is an arithmetic number, because the mean of its divisors is an integer number (4402946310).

Almost surely, 2^38158867838 is an apocalyptic number.

38158867838 is a deficient number, since it is larger than the sum of its proper divisors (32288273122).

38158867838 is a wasteful number, since it uses less digits than its factorization.

38158867838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209664131.

The product of its digits is 61931520, while the sum is 65.

The spelling of 38158867838 in words is "thirty-eight billion, one hundred fifty-eight million, eight hundred sixty-seven thousand, eight hundred thirty-eight".