128345750638318 has 16 divisors (see below), whose sum is σ = 192654454107024. Its totient is φ = 64127606689600.

The previous prime is 128345750638213. The next prime is 128345750638327. The reversal of 128345750638318 is 813836057543821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 128345750638318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32858721 + ... + 36556627.

It is an arithmetic number, because the mean of its divisors is an integer number (12040903381689).

Almost surely, 2^{128345750638318} is an apocalyptic number.

128345750638318 is a deficient number, since it is larger than the sum of its proper divisors (64308703468706).

128345750638318 is a wasteful number, since it uses less digits than its factorization.

128345750638318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710147.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 128345750638318 in words is "one hundred twenty-eight trillion, three hundred forty-five billion, seven hundred fifty million, six hundred thirty-eight thousand, three hundred eighteen".