4278966218 has 16 divisors (see below), whose sum is σ = 6471739080. Its totient is φ = 2121793536.

The previous prime is 4278966217. The next prime is 4278966221. The reversal of 4278966218 is 8126698724.

It can be written as a sum of positive squares in 4 ways, for example, as 4246737889 + 32228329 = 65167^2 + 5677^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4278966218.

It is not an unprimeable number, because it can be changed into a prime (4278966217) 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, 99530 + ... + 135882.

Almost surely, 2^4278966218 is an apocalyptic number.

4278966218 is a deficient number, since it is larger than the sum of its proper divisors (2192772862).

4278966218 is a wasteful number, since it uses less digits than its factorization.

4278966218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36841.

The product of its digits is 2322432, while the sum is 53.

The square root of 4278966218 is about 65413.8075485597. The cubic root of 4278966218 is about 1623.4775443828.

The spelling of 4278966218 in words is "four billion, two hundred seventy-eight million, nine hundred sixty-six thousand, two hundred eighteen".