128109067844139 has 24 divisors (see below), whose sum is σ = 191433269289600. Its totient is φ = 82458456218880.

The previous prime is 128109067844111. The next prime is 128109067844269. The reversal of 128109067844139 is 931448760901821.

128109067844139 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 0 + 90 + 6 + 78 + 441 + 39 = 666.

It is not a de Polignac number, because 128109067844139 - 2⁴⁰ = 127009556216363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128109067844939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866374 + ... + 16030244.

It is an arithmetic number, because the mean of its divisors is an integer number (7976386220400).

Almost surely, 2^{128109067844139} is an apocalyptic number.

128109067844139 is a deficient number, since it is larger than the sum of its proper divisors (63324201445461).

128109067844139 is a wasteful number, since it uses less digits than its factorization.

128109067844139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15196275 (or 15196272 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 128109067844139 in words is "one hundred twenty-eight trillion, one hundred nine billion, sixty-seven million, eight hundred forty-four thousand, one hundred thirty-nine".