138771487086 has 8 divisors (see below), whose sum is σ = 277542974184. Its totient is φ = 46257162360.

The previous prime is 138771487079. The next prime is 138771487109. The reversal of 138771487086 is 680784177831.

138771487086 is digitally balanced in base 3, 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.

138771487086 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11564290585 + ... + 11564290596.

It is an arithmetic number, because the mean of its divisors is an integer number (34692871773).

Almost surely, 2^138771487086 is an apocalyptic number.

138771487086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138771487086 is a wasteful number, since it uses less digits than its factorization.

138771487086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128581186.

The product of its (nonzero) digits is 12644352, while the sum is 60.

The spelling of 138771487086 in words is "one hundred thirty-eight billion, seven hundred seventy-one million, four hundred eighty-seven thousand, eighty-six".