393313313648 has 20 divisors (see below), whose sum is σ = 762088689720. Its totient is φ = 196645264704.

The previous prime is 393313313647. The next prime is 393313313671. The reversal of 393313313648 is 846313313393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393313313647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423638 + ... + 982901.

It is an arithmetic number, because the mean of its divisors is an integer number (38104434486).

Almost surely, 2^393313313648 is an apocalyptic number.

It is an amenable number.

393313313648 is a deficient number, since it is larger than the sum of its proper divisors (368775376072).

393313313648 is a wasteful number, since it uses less digits than its factorization.

393313313648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424024 (or 1424018 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 47.

The spelling of 393313313648 in words is "three hundred ninety-three billion, three hundred thirteen million, three hundred thirteen thousand, six hundred forty-eight".