6993355823 has 4 divisors (see below), whose sum is σ = 7002897288. Its totient is φ = 6983814360.

The previous prime is 6993355819. The next prime is 6993355843. The reversal of 6993355823 is 3285533996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6993355823 - 2² = 6993355819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6993355843) 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, 4769633 + ... + 4771098.

It is an arithmetic number, because the mean of its divisors is an integer number (1750724322).

Almost surely, 2^6993355823 is an apocalyptic number.

6993355823 is a deficient number, since it is larger than the sum of its proper divisors (9541465).

6993355823 is an equidigital number, since it uses as much as digits as its factorization.

6993355823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541464.

The product of its digits is 5248800, while the sum is 53.

The square root of 6993355823 is about 83626.2866747053. The cubic root of 6993355823 is about 1912.3257600699.

The spelling of 6993355823 in words is "six billion, nine hundred ninety-three million, three hundred fifty-five thousand, eight hundred twenty-three".