138281547599 has 8 divisors (see below), whose sum is σ = 148952519520. Its totient is φ = 127615422816.

The previous prime is 138281547563. The next prime is 138281547617. The reversal of 138281547599 is 995745182831.

138281547599 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 138281547599 - 2⁸ = 138281547343 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 (138281547529) 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, 1152419 + ... + 1266740.

It is an arithmetic number, because the mean of its divisors is an integer number (18619064940).

Almost surely, 2^138281547599 is an apocalyptic number.

138281547599 is a deficient number, since it is larger than the sum of its proper divisors (10670971921).

138281547599 is a wasteful number, since it uses less digits than its factorization.

138281547599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423569.

The product of its digits is 21772800, while the sum is 62.

The spelling of 138281547599 in words is "one hundred thirty-eight billion, two hundred eighty-one million, five hundred forty-seven thousand, five hundred ninety-nine".