393668094775 has 6 divisors (see below), whose sum is σ = 488148437552. Its totient is φ = 314934475800.

The previous prime is 393668094739. The next prime is 393668094797. The reversal of 393668094775 is 577490866393.

It is a de Polignac number, because none of the positive numbers 2^k-393668094775 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 393668094775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7873361871 + ... + 7873361920.

Almost surely, 2^393668094775 is an apocalyptic number.

393668094775 is a deficient number, since it is larger than the sum of its proper divisors (94480342777).

393668094775 is a wasteful number, since it uses less digits than its factorization.

393668094775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15746723801 (or 15746723796 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 67.

The spelling of 393668094775 in words is "three hundred ninety-three billion, six hundred sixty-eight million, ninety-four thousand, seven hundred seventy-five".