393863219072 has 48 divisors (see below), whose sum is σ = 794708989200. Its totient is φ = 194438804352.

The previous prime is 393863218981. The next prime is 393863219083. The reversal of 393863219072 is 270912368393.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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, 4985610329 + ... + 4985610407.

It is an arithmetic number, because the mean of its divisors is an integer number (16556437275).

Almost surely, 2^393863219072 is an apocalyptic number.

393863219072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 393863219072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397354494600).

393863219072 is an abundant number, since it is smaller than the sum of its proper divisors (400845770128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393863219072 is an frugal number, since it uses more digits than its factorization.

393863219072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 393863219072 in words is "three hundred ninety-three billion, eight hundred sixty-three million, two hundred nineteen thousand, seventy-two".