2188276728812 has 24 divisors (see below), whose sum is σ = 3968143872000. Its totient is φ = 1055165516496.

The previous prime is 2188276728793. The next prime is 2188276728829.

2188276728812 is nontrivially palindromic in base 10.

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, 80508812 + ... + 80535987.

It is an arithmetic number, because the mean of its divisors is an integer number (165339328000).

Almost surely, 2^{2188276728812} is an apocalyptic number.

It is an amenable number.

2188276728812 is a deficient number, since it is larger than the sum of its proper divisors (1779867143188).

2188276728812 is a wasteful number, since it uses less digits than its factorization.

2188276728812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161044925 (or 161044923 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 62.

The spelling of 2188276728812 in words is "two trillion, one hundred eighty-eight billion, two hundred seventy-six million, seven hundred twenty-eight thousand, eight hundred twelve".