12633643333 has 4 divisors (see below), whose sum is σ = 12634051788. Its totient is φ = 12633234880.

The previous prime is 12633643291. The next prime is 12633643339. The reversal of 12633643333 is 33334633621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1691018884 + 10942624449 = 41122^2 + 104607^2 .

It is a cyclic number.

It is not a de Polignac number, because 12633643333 - 2¹³ = 12633635141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12633643292 and 12633643301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633643339) 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, 153658 + ... + 221083.

It is an arithmetic number, because the mean of its divisors is an integer number (3158512947).

Almost surely, 2^12633643333 is an apocalyptic number.

It is an amenable number.

12633643333 is a deficient number, since it is larger than the sum of its proper divisors (408455).

12633643333 is an equidigital number, since it uses as much as digits as its factorization.

12633643333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408454.

The product of its digits is 209952, while the sum is 37.

The spelling of 12633643333 in words is "twelve billion, six hundred thirty-three million, six hundred forty-three thousand, three hundred thirty-three".