138373261206 has 16 divisors (see below), whose sum is σ = 276864868800. Its totient is φ = 46104696008.

The previous prime is 138373261171. The next prime is 138373261211. The reversal of 138373261206 is 602162373831.

138373261206 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4915896 + ... + 4943963.

It is an arithmetic number, because the mean of its divisors is an integer number (17304054300).

Almost surely, 2^138373261206 is an apocalyptic number.

138373261206 is an abundant number, since it is smaller than the sum of its proper divisors (138491607594).

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

138373261206 is a wasteful number, since it uses less digits than its factorization.

138373261206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862203.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 138373261206 in words is "one hundred thirty-eight billion, three hundred seventy-three million, two hundred sixty-one thousand, two hundred six".