678196144 has 20 divisors (see below), whose sum is σ = 1314797296. Its totient is φ = 338893632.

The previous prime is 678196133. The next prime is 678196153. The reversal of 678196144 is 441691876.

It is a junction number, because it is equal to n+sod(n) for n = 678196094 and 678196103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16642 + ... + 40414.

Almost surely, 2^678196144 is an apocalyptic number.

It is an amenable number.

678196144 is a deficient number, since it is larger than the sum of its proper divisors (636601152).

678196144 is a wasteful number, since it uses less digits than its factorization.

678196144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25564 (or 25558 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 678196144 is about 26042.1992926865. The cubic root of 678196144 is about 878.5876725600.

The spelling of 678196144 in words is "six hundred seventy-eight million, one hundred ninety-six thousand, one hundred forty-four".