138896338676 has 6 divisors (see below), whose sum is σ = 243068592690. Its totient is φ = 69448169336.

The previous prime is 138896338631. The next prime is 138896338717. The reversal of 138896338676 is 676833698831.

It can be written as a sum of positive squares in only one way, i.e., 74897458276 + 63998880400 = 273674^2 + 252980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17362042331 + ... + 17362042338.

It is an arithmetic number, because the mean of its divisors is an integer number (40511432115).

Almost surely, 2^138896338676 is an apocalyptic number.

It is an amenable number.

138896338676 is a deficient number, since it is larger than the sum of its proper divisors (104172254014).

138896338676 is a wasteful number, since it uses less digits than its factorization.

138896338676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34724084673 (or 34724084671 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 68.

The spelling of 138896338676 in words is "one hundred thirty-eight billion, eight hundred ninety-six million, three hundred thirty-eight thousand, six hundred seventy-six".