138817136871064 has 128 divisors (see below), whose sum is σ = 278529379920000. Its totient is φ = 64634000449536.

The previous prime is 138817136871041. The next prime is 138817136871071. The reversal of 138817136871064 is 460178631718831.

It is a super-3 number, since 3×138817136871064³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138817136870987 and 138817136871005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5380704837 + ... + 5380730635.

It is an arithmetic number, because the mean of its divisors is an integer number (2176010780625).

Almost surely, 2^{138817136871064} is an apocalyptic number.

It is an amenable number.

138817136871064 is an abundant number, since it is smaller than the sum of its proper divisors (139712243048936).

138817136871064 is a wasteful number, since it uses less digits than its factorization.

138817136871064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27125 (or 27121 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 138817136871064 in words is "one hundred thirty-eight trillion, eight hundred seventeen billion, one hundred thirty-six million, eight hundred seventy-one thousand, sixty-four".