138713406679 has 8 divisors (see below), whose sum is σ = 139114528640. Its totient is φ = 138312857016.

The previous prime is 138713406607. The next prime is 138713406683. The reversal of 138713406679 is 976604317831.

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

It is a cyclic number.

It is not a de Polignac number, because 138713406679 - 2¹¹ = 138713404631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138713406079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344782 + ... + 629524.

It is an arithmetic number, because the mean of its divisors is an integer number (17389316080).

Almost surely, 2^138713406679 is an apocalyptic number.

138713406679 is a deficient number, since it is larger than the sum of its proper divisors (401121961).

138713406679 is an equidigital number, since it uses as much as digits as its factorization.

138713406679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286149.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 138713406679 in words is "one hundred thirty-eight billion, seven hundred thirteen million, four hundred six thousand, six hundred seventy-nine".