128836487846 has 16 divisors (see below), whose sum is σ = 210833824320. Its totient is φ = 58559128680.

The previous prime is 128836487783. The next prime is 128836487849. The reversal of 128836487846 is 648784638821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128836487849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343565 + ... + 612951.

It is an arithmetic number, because the mean of its divisors is an integer number (13177114020).

Almost surely, 2^128836487846 is an apocalyptic number.

128836487846 is a deficient number, since it is larger than the sum of its proper divisors (81997336474).

128836487846 is a wasteful number, since it uses less digits than its factorization.

128836487846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291139.

The product of its digits is 99090432, while the sum is 65.

The spelling of 128836487846 in words is "one hundred twenty-eight billion, eight hundred thirty-six million, four hundred eighty-seven thousand, eight hundred forty-six".