138670011798 has 32 divisors (see below), whose sum is σ = 280330056576. Its totient is φ = 45726565248.

The previous prime is 138670011751. The next prime is 138670011817. The reversal of 138670011798 is 897110076831.

138670011798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138670011798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159061 + ... + 550127.

It is an arithmetic number, because the mean of its divisors is an integer number (8760314268).

Almost surely, 2^138670011798 is an apocalyptic number.

138670011798 is an abundant number, since it is smaller than the sum of its proper divisors (141660044778).

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

138670011798 is a wasteful number, since it uses less digits than its factorization.

138670011798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391708.

The product of its (nonzero) digits is 508032, while the sum is 51.

The spelling of 138670011798 in words is "one hundred thirty-eight billion, six hundred seventy million, eleven thousand, seven hundred ninety-eight".