138670771708 has 24 divisors (see below), whose sum is σ = 277357298400. Its totient is φ = 59426954688.

The previous prime is 138670771699. The next prime is 138670771777. The reversal of 138670771708 is 807177076831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397098 + ... + 659566.

It is an arithmetic number, because the mean of its divisors is an integer number (11556554100).

Almost surely, 2^138670771708 is an apocalyptic number.

It is an amenable number.

138670771708 is an abundant number, since it is smaller than the sum of its proper divisors (138686526692).

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

138670771708 is a wasteful number, since it uses less digits than its factorization.

138670771708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281349 (or 281347 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 55.

The spelling of 138670771708 in words is "one hundred thirty-eight billion, six hundred seventy million, seven hundred seventy-one thousand, seven hundred eight".