6623444331 has 32 divisors (see below), whose sum is σ = 11224312320. Its totient is φ = 3781445472.

The previous prime is 6623444323. The next prime is 6623444423. The reversal of 6623444331 is 1334443266.

It is not a de Polignac number, because 6623444331 - 2³ = 6623444323 is a prime.

It is a super-2 number, since 2×6623444331² = 87740029611712075122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6623440331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204741 + ... + 234873.

It is an arithmetic number, because the mean of its divisors is an integer number (350759760).

Almost surely, 2^6623444331 is an apocalyptic number.

6623444331 is a deficient number, since it is larger than the sum of its proper divisors (4600867989).

6623444331 is a wasteful number, since it uses less digits than its factorization.

6623444331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31312 (or 31306 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The square root of 6623444331 is about 81384.5460207280. The cubic root of 6623444331 is about 1877.9958583746.

Adding to 6623444331 its reverse (1334443266), we get a palindrome (7957887597).

The spelling of 6623444331 in words is "six billion, six hundred twenty-three million, four hundred forty-four thousand, three hundred thirty-one".