8393466643938 has 48 divisors (see below), whose sum is σ = 18367574337216. Its totient is φ = 2769868807200.

The previous prime is 8393466643927. The next prime is 8393466644021.

8393466643938 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20315245 + ... + 20724287.

It is an arithmetic number, because the mean of its divisors is an integer number (382657798692).

Almost surely, 2^{8393466643938} is an apocalyptic number.

8393466643938 is an abundant number, since it is smaller than the sum of its proper divisors (9974107693278).

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

8393466643938 is a wasteful number, since it uses less digits than its factorization.

8393466643938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420439 (or 420436 counting only the distinct ones).

The product of its digits is 1451188224, while the sum is 72.

The spelling of 8393466643938 in words is "eight trillion, three hundred ninety-three billion, four hundred sixty-six million, six hundred forty-three thousand, nine hundred thirty-eight".