8663146378 has 16 divisors (see below), whose sum is σ = 13099465800. Its totient is φ = 4296736000.

The previous prime is 8663146357. The next prime is 8663146391. The reversal of 8663146378 is 8736413668.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2257865289 + 6405281089 = 47517^2 + 80033^2 .

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, 207678 + ... + 245878.

Almost surely, 2^8663146378 is an apocalyptic number.

8663146378 is a deficient number, since it is larger than the sum of its proper divisors (4436319422).

8663146378 is a wasteful number, since it uses less digits than its factorization.

8663146378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39113.

The product of its digits is 3483648, while the sum is 52.

The square root of 8663146378 is about 93076.0247217295. The cubic root of 8663146378 is about 2053.8018979428.

The spelling of 8663146378 in words is "eight billion, six hundred sixty-three million, one hundred forty-six thousand, three hundred seventy-eight".