128047434183 has 24 divisors (see below), whose sum is σ = 190996682240. Its totient is φ = 82579700880.

The previous prime is 128047434161. The next prime is 128047434199. The reversal of 128047434183 is 381434740821.

It is not a de Polignac number, because 128047434183 - 2¹⁸ = 128047172039 is a prime.

It is a super-3 number, since 3×128047434183³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128047434883) 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 23 ways as a sum of consecutive naturals, for example, 655560 + ... + 828162.

Almost surely, 2^128047434183 is an apocalyptic number.

128047434183 is a deficient number, since it is larger than the sum of its proper divisors (62949248057).

128047434183 is a wasteful number, since it uses less digits than its factorization.

128047434183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175299 (or 175296 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 128047434183 in words is "one hundred twenty-eight billion, forty-seven million, four hundred thirty-four thousand, one hundred eighty-three".