138701670208 has 14 divisors (see below), whose sum is σ = 275236126946. Its totient is φ = 69350835072.

The previous prime is 138701670181. The next prime is 138701670227. The reversal of 138701670208 is 802076107831.

It can be written as a sum of positive squares in only one way, i.e., 111978575424 + 26723094784 = 334632^2 + 163472^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083606735 + ... + 1083606862.

Almost surely, 2^138701670208 is an apocalyptic number.

It is an amenable number.

138701670208 is a deficient number, since it is larger than the sum of its proper divisors (136534456738).

138701670208 is an equidigital number, since it uses as much as digits as its factorization.

138701670208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167213609 (or 2167213599 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 138701670208 in words is "one hundred thirty-eight billion, seven hundred one million, six hundred seventy thousand, two hundred eight".