6393378616 has 16 divisors (see below), whose sum is σ = 11988464040. Its totient is φ = 3196454880.

The previous prime is 6393378491. The next prime is 6393378637. The reversal of 6393378616 is 6168733936.

It is a congruent number.

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, 154186 + ... + 191206.

Almost surely, 2^6393378616 is an apocalyptic number.

It is an amenable number.

6393378616 is a deficient number, since it is larger than the sum of its proper divisors (5595085424).

6393378616 is a wasteful number, since it uses less digits than its factorization.

6393378616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58614 (or 58610 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 52.

The square root of 6393378616 is about 79958.6056406688. The cubic root of 6393378616 is about 1855.9950262141.

The spelling of 6393378616 in words is "six billion, three hundred ninety-three million, three hundred seventy-eight thousand, six hundred sixteen".