128279480041 has 4 divisors (see below), whose sum is σ = 128280380800. Its totient is φ = 128278579284.

The previous prime is 128279480027. The next prime is 128279480047. The reversal of 128279480041 is 140084972821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 128279480041 - 2¹¹ = 128279477993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128279479973 and 128279480000.

It is not an unprimeable number, because it can be changed into a prime (128279480047) 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, 184401 + ... + 539038.

It is an arithmetic number, because the mean of its divisors is an integer number (32070095200).

Almost surely, 2^128279480041 is an apocalyptic number.

It is an amenable number.

128279480041 is a deficient number, since it is larger than the sum of its proper divisors (900759).

128279480041 is an equidigital number, since it uses as much as digits as its factorization.

128279480041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900758.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 128279480041 in words is "one hundred twenty-eight billion, two hundred seventy-nine million, four hundred eighty thousand, forty-one".