128470845049 has 8 divisors (see below), whose sum is σ = 129967649280. Its totient is φ = 126975225696.

The previous prime is 128470845043. The next prime is 128470845067. The reversal of 128470845049 is 940548074821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128470845049 - 2⁷ = 128470844921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128470844987 and 128470845005.

It is not an unprimeable number, because it can be changed into a prime (128470845043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77169 + ... + 512734.

It is an arithmetic number, because the mean of its divisors is an integer number (16245956160).

Almost surely, 2^128470845049 is an apocalyptic number.

It is an amenable number.

128470845049 is a deficient number, since it is larger than the sum of its proper divisors (1496804231).

128470845049 is an equidigital number, since it uses as much as digits as its factorization.

128470845049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592439.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 128470845049 in words is "one hundred twenty-eight billion, four hundred seventy million, eight hundred forty-five thousand, forty-nine".