128127379366 has 8 divisors (see below), whose sum is σ = 219646936080. Its totient is φ = 54911734008.

The previous prime is 128127379349. The next prime is 128127379417. The reversal of 128127379366 is 663973721821.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4575977821 + ... + 4575977848.

It is an arithmetic number, because the mean of its divisors is an integer number (27455867010).

Almost surely, 2^128127379366 is an apocalyptic number.

128127379366 is a deficient number, since it is larger than the sum of its proper divisors (91519556714).

128127379366 is an equidigital number, since it uses as much as digits as its factorization.

128127379366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9151955678.

The product of its digits is 4572288, while the sum is 55.

The spelling of 128127379366 in words is "one hundred twenty-eight billion, one hundred twenty-seven million, three hundred seventy-nine thousand, three hundred sixty-six".