993281168896 has 40 divisors (see below), whose sum is σ = 1985556699720. Its totient is φ = 496406765568.

The previous prime is 993281168863. The next prime is 993281168897. The reversal of 993281168896 is 698861182399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993281168897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634435 + ... + 1545661.

It is an arithmetic number, because the mean of its divisors is an integer number (49638917493).

Almost surely, 2^993281168896 is an apocalyptic number.

It is an amenable number.

993281168896 is a deficient number, since it is larger than the sum of its proper divisors (992275530824).

993281168896 is an equidigital number, since it uses as much as digits as its factorization.

993281168896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913374 (or 913358 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 70.

The spelling of 993281168896 in words is "nine hundred ninety-three billion, two hundred eighty-one million, one hundred sixty-eight thousand, eight hundred ninety-six".