138838335858088 has 32 divisors (see below), whose sum is σ = 271123206341760. Its totient is φ = 66591664695360.

The previous prime is 138838335858083. The next prime is 138838335858121. The reversal of 138838335858088 is 880858533838831.

It is a junction number, because it is equal to n+sod(n) for n = 138838335857999 and 138838335858017.

It is not an unprimeable number, because it can be changed into a prime (138838335858083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3303136956 + ... + 3303178987.

It is an arithmetic number, because the mean of its divisors is an integer number (8472600198180).

Almost surely, 2^{138838335858088} is an apocalyptic number.

It is an amenable number.

138838335858088 is a deficient number, since it is larger than the sum of its proper divisors (132284870483672).

138838335858088 is a wasteful number, since it uses less digits than its factorization.

138838335858088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606316057 (or 6606316053 counting only the distinct ones).

The product of its (nonzero) digits is 4246732800, while the sum is 79.

The spelling of 138838335858088 in words is "one hundred thirty-eight trillion, eight hundred thirty-eight billion, three hundred thirty-five million, eight hundred fifty-eight thousand, eighty-eight".