128439338114 has 16 divisors (see below), whose sum is σ = 196341054840. Its totient is φ = 62992899840.

The previous prime is 128439338107. The next prime is 128439338119. The reversal of 128439338114 is 411833934821.

It can be written as a sum of positive squares in 4 ways, for example, as 121832412025 + 6606926089 = 349045^2 + 81283^2 .

It is not an unprimeable number, because it can be changed into a prime (128439338119) 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, 306692 + ... + 592400.

Almost surely, 2^128439338114 is an apocalyptic number.

128439338114 is a deficient number, since it is larger than the sum of its proper divisors (67901716726).

128439338114 is a wasteful number, since it uses less digits than its factorization.

128439338114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290005.

The product of its digits is 497664, while the sum is 47.

The spelling of 128439338114 in words is "one hundred twenty-eight billion, four hundred thirty-nine million, three hundred thirty-eight thousand, one hundred fourteen".