393325914342916 has 27 divisors (see below), whose sum is σ = 688902179833749. Its totient is φ = 196496860436208.

The previous prime is 393325914342887. The next prime is 393325914342947. The reversal of 393325914342916 is 619243419523393.

The square root of 393325914342916 is 19832446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 344033720037316 + 49292194305600 = 18548146^2 + 7020840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56601797410 + ... + 56601804358.

Almost surely, 2^{393325914342916} is an apocalyptic number.

393325914342916 is the 19832446-th square number.

It is an amenable number.

393325914342916 is a deficient number, since it is larger than the sum of its proper divisors (295576265490833).

393325914342916 is an frugal number, since it uses more digits than its factorization.

393325914342916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756 (or 8378 counting only the distinct ones).

The product of its digits is 113374080, while the sum is 64.

The spelling of 393325914342916 in words is "three hundred ninety-three trillion, three hundred twenty-five billion, nine hundred fourteen million, three hundred forty-two thousand, nine hundred sixteen".