993644336411792 has 40 divisors (see below), whose sum is σ = 2073534072018360. Its totient is φ = 458548242140160.

The previous prime is 993644336411791. The next prime is 993644336411803. The reversal of 993644336411792 is 297114633446399.

It can be written as a sum of positive squares in 4 ways, for example, as 68125808714896 + 925518527696896 = 8253836^2 + 30422336^2 .

It is not an unprimeable number, because it can be changed into a prime (993644336411791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294339509 + ... + 297696212.

It is an arithmetic number, because the mean of its divisors is an integer number (51838351800459).

Almost surely, 2^{993644336411792} is an apocalyptic number.

It is an amenable number.

993644336411792 is an abundant number, since it is smaller than the sum of its proper divisors (1079889735606568).

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

993644336411792 is a wasteful number, since it uses less digits than its factorization.

993644336411792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592043811 (or 592043805 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 71.

The spelling of 993644336411792 in words is "nine hundred ninety-three trillion, six hundred forty-four billion, three hundred thirty-six million, four hundred eleven thousand, seven hundred ninety-two".