134423236728 has 48 divisors (see below), whose sum is σ = 397159565400. Its totient is φ = 40734313920.

The previous prime is 134423236721. The next prime is 134423236747. The reversal of 134423236728 is 827632324431.

134423236728 is a `hidden beast` number, since 1 + 34 + 4 + 232 + 367 + 28 = 666.

134423236728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134423236721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84862363 + ... + 84863946.

Almost surely, 2^134423236728 is an apocalyptic number.

134423236728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

134423236728 is an abundant number, since it is smaller than the sum of its proper divisors (262736328672).

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

134423236728 is a wasteful number, since it uses less digits than its factorization.

134423236728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169726332 (or 169726325 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 134423236728 in words is "one hundred thirty-four billion, four hundred twenty-three million, two hundred thirty-six thousand, seven hundred twenty-eight".