340128642217 has 16 divisors (see below), whose sum is σ = 418639455360. Its totient is φ = 269100179712.

The previous prime is 340128642157. The next prime is 340128642257. The reversal of 340128642217 is 712246821043.

It is not a de Polignac number, because 340128642217 - 2⁷ = 340128642089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340128642217.

It is not an unprimeable number, because it can be changed into a prime (340128642257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2193009 + ... + 2342977.

It is an arithmetic number, because the mean of its divisors is an integer number (26164965960).

Almost surely, 2^340128642217 is an apocalyptic number.

It is an amenable number.

340128642217 is a deficient number, since it is larger than the sum of its proper divisors (78510813143).

340128642217 is a wasteful number, since it uses less digits than its factorization.

340128642217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174912.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 340128642217 in words is "three hundred forty billion, one hundred twenty-eight million, six hundred forty-two thousand, two hundred seventeen".