993911343836 has 12 divisors (see below), whose sum is σ = 1739531481912. Its totient is φ = 496902349008.

The previous prime is 993911343833. The next prime is 993911343863. The reversal of 993911343836 is 638343119399.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993911343833) 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, 13288775 + ... + 13363358.

It is an arithmetic number, because the mean of its divisors is an integer number (144960956826).

Almost surely, 2^993911343836 is an apocalyptic number.

It is an amenable number.

993911343836 is a deficient number, since it is larger than the sum of its proper divisors (745620138076).

993911343836 is a wasteful number, since it uses less digits than its factorization.

993911343836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26661460 (or 26661458 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 59.

The spelling of 993911343836 in words is "nine hundred ninety-three billion, nine hundred eleven million, three hundred forty-three thousand, eight hundred thirty-six".