128340356353 has 8 divisors (see below), whose sum is σ = 140011984800. Its totient is φ = 116669448480.

The previous prime is 128340356351. The next prime is 128340356357. The reversal of 128340356353 is 353653043821.

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 128340356353 - 2¹ = 128340356351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128340356351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233598 + ... + 557896.

It is an arithmetic number, because the mean of its divisors is an integer number (17501498100).

Almost surely, 2^128340356353 is an apocalyptic number.

It is an amenable number.

128340356353 is a deficient number, since it is larger than the sum of its proper divisors (11671628447).

128340356353 is a wasteful number, since it uses less digits than its factorization.

128340356353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360287.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 128340356353 in words is "one hundred twenty-eight billion, three hundred forty million, three hundred fifty-six thousand, three hundred fifty-three".