128556376706 has 8 divisors (see below), whose sum is σ = 192845201664. Its totient is φ = 64274642820.

The previous prime is 128556376699. The next prime is 128556376717. The reversal of 128556376706 is 607673655821.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1727210 + ... + 1800101.

It is an arithmetic number, because the mean of its divisors is an integer number (24105650208).

Almost surely, 2^128556376706 is an apocalyptic number.

128556376706 is a deficient number, since it is larger than the sum of its proper divisors (64288824958).

128556376706 is a wasteful number, since it uses less digits than its factorization.

128556376706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545536.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 128556376706 in words is "one hundred twenty-eight billion, five hundred fifty-six million, three hundred seventy-six thousand, seven hundred six".