993881395323 has 10 divisors (see below), whose sum is σ = 1484687022764. Its totient is φ = 662587596828.

The previous prime is 993881395319. The next prime is 993881395327. The reversal of 993881395323 is 323593188399.

993881395323 is a `hidden beast` number, since 9 + 9 + 3 + 88 + 13 + 9 + 532 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (993881395319) and next prime (993881395327).

It is not a de Polignac number, because 993881395323 - 2² = 993881395319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993881395327) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6135070261 + ... + 6135070422.

Almost surely, 2^993881395323 is an apocalyptic number.

993881395323 is a deficient number, since it is larger than the sum of its proper divisors (490805627441).

993881395323 is a wasteful number, since it uses less digits than its factorization.

993881395323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12270140695 (or 12270140686 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The spelling of 993881395323 in words is "nine hundred ninety-three billion, eight hundred eighty-one million, three hundred ninety-five thousand, three hundred twenty-three".