138538625983 has 8 divisors (see below), whose sum is σ = 144851760000. Its totient is φ = 132249634968.

The previous prime is 138538625977. The next prime is 138538625987. The reversal of 138538625983 is 389526835831.

It is a happy number.

138538625983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138538625983 - 2⁹ = 138538625471 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 (138538625987) 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, 6024013 + ... + 6046966.

It is an arithmetic number, because the mean of its divisors is an integer number (18106470000).

Almost surely, 2^138538625983 is an apocalyptic number.

138538625983 is a deficient number, since it is larger than the sum of its proper divisors (6313134017).

138538625983 is a wasteful number, since it uses less digits than its factorization.

138538625983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12071501.

The product of its digits is 37324800, while the sum is 61.

The spelling of 138538625983 in words is "one hundred thirty-eight billion, five hundred thirty-eight million, six hundred twenty-five thousand, nine hundred eighty-three".