138673297797 has 16 divisors (see below), whose sum is σ = 191037898752. Its totient is φ = 89384272560.

The previous prime is 138673297757. The next prime is 138673297817. The reversal of 138673297797 is 797792376831.

It is not a de Polignac number, because 138673297797 - 2⁶ = 138673297733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138673297757) 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, 584793 + ... + 786974.

It is an arithmetic number, because the mean of its divisors is an integer number (11939868672).

Almost surely, 2^138673297797 is an apocalyptic number.

It is an amenable number.

138673297797 is a deficient number, since it is larger than the sum of its proper divisors (52364600955).

138673297797 is a wasteful number, since it uses less digits than its factorization.

138673297797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372888.

The product of its digits is 168031584, while the sum is 69.

The spelling of 138673297797 in words is "one hundred thirty-eight billion, six hundred seventy-three million, two hundred ninety-seven thousand, seven hundred ninety-seven".