128734500033 has 72 divisors (see below), whose sum is σ = 199252941888. Its totient is φ = 80074510848.

The previous prime is 128734500023. The next prime is 128734500049. The reversal of 128734500033 is 330005437821.

128734500033 is a `hidden beast` number, since 1 + 287 + 345 + 0 + 0 + 0 + 33 = 666.

It is not a de Polignac number, because 128734500033 - 2¹³ = 128734491841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128734500023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 210007035 + ... + 210007647.

Almost surely, 2^128734500033 is an apocalyptic number.

It is an amenable number.

128734500033 is a deficient number, since it is larger than the sum of its proper divisors (70518441855).

128734500033 is a wasteful number, since it uses less digits than its factorization.

128734500033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 128734500033 its reverse (330005437821), we get a palindrome (458739937854).

The spelling of 128734500033 in words is "one hundred twenty-eight billion, seven hundred thirty-four million, five hundred thousand, thirty-three".