393279664216 has 32 divisors (see below), whose sum is σ = 745111236240. Its totient is φ = 194583932928.

The previous prime is 393279664157. The next prime is 393279664231. The reversal of 393279664216 is 612466972393.

It is a happy number.

It is a congruent number.

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, 5822896 + ... + 5890048.

Almost surely, 2^393279664216 is an apocalyptic number.

It is an amenable number.

393279664216 is a deficient number, since it is larger than the sum of its proper divisors (351831572024).

393279664216 is a wasteful number, since it uses less digits than its factorization.

393279664216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74803 (or 74799 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 58.

The spelling of 393279664216 in words is "three hundred ninety-three billion, two hundred seventy-nine million, six hundred sixty-four thousand, two hundred sixteen".