138856167735 has 16 divisors (see below), whose sum is σ = 229830899040. Its totient is φ = 71502945920.

The previous prime is 138856167731. The next prime is 138856167757. The reversal of 138856167735 is 537761658831.

It is a happy number.

138856167735 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138856167735 - 2² = 138856167731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138856167731) 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 15 ways as a sum of consecutive naturals, for example, 159604356 + ... + 159605225.

It is an arithmetic number, because the mean of its divisors is an integer number (14364431190).

Almost surely, 2^138856167735 is an apocalyptic number.

138856167735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138856167735 is a deficient number, since it is larger than the sum of its proper divisors (90974731305).

138856167735 is a wasteful number, since it uses less digits than its factorization.

138856167735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319209618.

The product of its digits is 25401600, while the sum is 60.

The spelling of 138856167735 in words is "one hundred thirty-eight billion, eight hundred fifty-six million, one hundred sixty-seven thousand, seven hundred thirty-five".