138871692935 has 8 divisors (see below), whose sum is σ = 166718594736. Its totient is φ = 111048978880.

The previous prime is 138871692859. The next prime is 138871692959. The reversal of 138871692935 is 539296178831.

138871692935 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 not a de Polignac number, because 138871692935 - 2¹⁴ = 138871676551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 6034301 + ... + 6057270.

It is an arithmetic number, because the mean of its divisors is an integer number (20839824342).

Almost surely, 2^138871692935 is an apocalyptic number.

138871692935 is a deficient number, since it is larger than the sum of its proper divisors (27846901801).

138871692935 is a wasteful number, since it uses less digits than its factorization.

138871692935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12093873.

The product of its digits is 19595520, while the sum is 62.

The spelling of 138871692935 in words is "one hundred thirty-eight billion, eight hundred seventy-one million, six hundred ninety-two thousand, nine hundred thirty-five".