138500336811 has 8 divisors (see below), whose sum is σ = 185687376784. Its totient is φ = 91823427360.

The previous prime is 138500336801. The next prime is 138500336813. The reversal of 138500336811 is 118633005831.

It is a happy number.

138500336811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138500336811 - 2²² = 138496142507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138500336811.

It is not an unprimeable number, because it can be changed into a prime (138500336813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127531996 + ... + 127533081.

It is an arithmetic number, because the mean of its divisors is an integer number (23210922098).

Almost surely, 2^138500336811 is an apocalyptic number.

138500336811 is a deficient number, since it is larger than the sum of its proper divisors (47187039973).

138500336811 is a wasteful number, since it uses less digits than its factorization.

138500336811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255065261.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 138500336811 in words is "one hundred thirty-eight billion, five hundred million, three hundred thirty-six thousand, eight hundred eleven".