138273546587 has 4 divisors (see below), whose sum is σ = 150843869016. Its totient is φ = 125703224160.

The previous prime is 138273546557. The next prime is 138273546601. The reversal of 138273546587 is 785645372831.

138273546587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785645372831 = 11 ⋅71422306621.

It is a cyclic number.

It is not a de Polignac number, because 138273546587 - 2⁸ = 138273546331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138273546557) 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 3 ways as a sum of consecutive naturals, for example, 6285161198 + ... + 6285161219.

It is an arithmetic number, because the mean of its divisors is an integer number (37710967254).

Almost surely, 2^138273546587 is an apocalyptic number.

138273546587 is a deficient number, since it is larger than the sum of its proper divisors (12570322429).

138273546587 is a wasteful number, since it uses less digits than its factorization.

138273546587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570322428.

The product of its digits is 33868800, while the sum is 59.

The spelling of 138273546587 in words is "one hundred thirty-eight billion, two hundred seventy-three million, five hundred forty-six thousand, five hundred eighty-seven".