138320969270 has 32 divisors (see below), whose sum is σ = 271742929920. Its totient is φ = 50274303840.

The previous prime is 138320969263. The next prime is 138320969287. The reversal of 138320969270 is 72969023831.

It is a happy number.

138320969270 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 72710 + ... + 530969.

It is an arithmetic number, because the mean of its divisors is an integer number (8491966560).

Almost surely, 2^138320969270 is an apocalyptic number.

138320969270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138320969270 is a deficient number, since it is larger than the sum of its proper divisors (133421960650).

138320969270 is a wasteful number, since it uses less digits than its factorization.

138320969270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605780.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 138320969270 in words is "one hundred thirty-eight billion, three hundred twenty million, nine hundred sixty-nine thousand, two hundred seventy".