138686285814 has 16 divisors (see below), whose sum is σ = 279917275440. Its totient is φ = 45804644640.

The previous prime is 138686285797. The next prime is 138686285839. The reversal of 138686285814 is 418582686831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106028617 + ... + 106029924.

It is an arithmetic number, because the mean of its divisors is an integer number (17494829715).

Almost surely, 2^138686285814 is an apocalyptic number.

138686285814 is an abundant number, since it is smaller than the sum of its proper divisors (141230989626).

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

138686285814 is a wasteful number, since it uses less digits than its factorization.

138686285814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212058655.

The product of its digits is 17694720, while the sum is 60.

The spelling of 138686285814 in words is "one hundred thirty-eight billion, six hundred eighty-six million, two hundred eighty-five thousand, eight hundred fourteen".