128339611734 has 16 divisors (see below), whose sum is σ = 256699173888. Its totient is φ = 42776545512.

The previous prime is 128339611717. The next prime is 128339611747. The reversal of 128339611734 is 437116933821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746982 + ... + 902585.

It is an arithmetic number, because the mean of its divisors is an integer number (16043698368).

Almost surely, 2^128339611734 is an apocalyptic number.

128339611734 is an abundant number, since it is smaller than the sum of its proper divisors (128359562154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128339611734 is a wasteful number, since it uses less digits than its factorization.

128339611734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662539.

The product of its digits is 653184, while the sum is 48.

The spelling of 128339611734 in words is "one hundred twenty-eight billion, three hundred thirty-nine million, six hundred eleven thousand, seven hundred thirty-four".