138841860773 has 16 divisors (see below), whose sum is σ = 173537602944. Its totient is φ = 107915924160.

The previous prime is 138841860761. The next prime is 138841860841. The reversal of 138841860773 is 377068148831.

It is a happy number.

It is not a de Polignac number, because 138841860773 - 2⁴ = 138841860757 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 (138841860473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2240390 + ... + 2301527.

It is an arithmetic number, because the mean of its divisors is an integer number (10846100184).

Almost surely, 2^138841860773 is an apocalyptic number.

It is an amenable number.

138841860773 is a deficient number, since it is larger than the sum of its proper divisors (34695742171).

138841860773 is a wasteful number, since it uses less digits than its factorization.

138841860773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542332.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 138841860773 in words is "one hundred thirty-eight billion, eight hundred forty-one million, eight hundred sixty thousand, seven hundred seventy-three".