38893120138 has 16 divisors (see below), whose sum is σ = 59862749760. Its totient is φ = 18941390496.

The previous prime is 38893120127. The next prime is 38893120139. The reversal of 38893120138 is 83102139883.

It is a super-2 number, since 2×38893120138² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38893120139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598995 + ... + 660742.

It is an arithmetic number, because the mean of its divisors is an integer number (3741421860).

Almost surely, 2^38893120138 is an apocalyptic number.

38893120138 is a deficient number, since it is larger than the sum of its proper divisors (20969629622).

38893120138 is a wasteful number, since it uses less digits than its factorization.

38893120138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260141.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 38893120138 in words is "thirty-eight billion, eight hundred ninety-three million, one hundred twenty thousand, one hundred thirty-eight".