128033329841 has 4 divisors (see below), whose sum is σ = 128106368292. Its totient is φ = 127960291392.

The previous prime is 128033329817. The next prime is 128033329877. The reversal of 128033329841 is 148923330821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62898633616 + 65134696225 = 250796^2 + 255215^2 .

It is a cyclic number.

It is not a de Polignac number, because 128033329841 - 2⁶ = 128033329777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128033329792 and 128033329801.

It is not an unprimeable number, because it can be changed into a prime (128033320841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36516596 + ... + 36520101.

It is an arithmetic number, because the mean of its divisors is an integer number (32026592073).

Almost surely, 2^128033329841 is an apocalyptic number.

It is an amenable number.

128033329841 is a deficient number, since it is larger than the sum of its proper divisors (73038451).

128033329841 is an equidigital number, since it uses as much as digits as its factorization.

128033329841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73038450.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 128033329841 in words is "one hundred twenty-eight billion, thirty-three million, three hundred twenty-nine thousand, eight hundred forty-one".