2178313328 has 10 divisors (see below), whose sum is σ = 4220482104. Its totient is φ = 1089156656.

The previous prime is 2178313327. The next prime is 2178313369. The reversal of 2178313328 is 8233138712.

It is a junction number, because it is equal to n+sod(n) for n = 2178313291 and 2178313300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178313327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68072276 + ... + 68072307.

Almost surely, 2^2178313328 is an apocalyptic number.

It is an amenable number.

2178313328 is a deficient number, since it is larger than the sum of its proper divisors (2042168776).

2178313328 is a wasteful number, since it uses less digits than its factorization.

2178313328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136144591 (or 136144585 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 2178313328 is about 46672.4043520365. The cubic root of 2178313328 is about 1296.3037664979.

The spelling of 2178313328 in words is "two billion, one hundred seventy-eight million, three hundred thirteen thousand, three hundred twenty-eight".