12209955863 has 8 divisors (see below), whose sum is σ = 13954919328. Its totient is φ = 10465163424.

The previous prime is 12209955847. The next prime is 12209955889. The reversal of 12209955863 is 36855990221.

12209955863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12209955863 - 2⁴ = 12209955847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12209957863) 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 7 ways as a sum of consecutive naturals, for example, 209345 + ... + 261237.

It is an arithmetic number, because the mean of its divisors is an integer number (1744364916).

Almost surely, 2^12209955863 is an apocalyptic number.

12209955863 is a deficient number, since it is larger than the sum of its proper divisors (1744963465).

12209955863 is an equidigital number, since it uses as much as digits as its factorization.

12209955863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85513.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 12209955863 in words is "twelve billion, two hundred nine million, nine hundred fifty-five thousand, eight hundred sixty-three".