12543455200 has 36 divisors (see below), whose sum is σ = 30621711960. Its totient is φ = 5017381760.

The previous prime is 12543455143. The next prime is 12543455233. The reversal of 12543455200 is 255434521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7838860 + ... + 7840459.

It is an arithmetic number, because the mean of its divisors is an integer number (850603110).

Almost surely, 2^12543455200 is an apocalyptic number.

12543455200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12543455200 is an abundant number, since it is smaller than the sum of its proper divisors (18078256760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12543455200 is a wasteful number, since it uses less digits than its factorization.

12543455200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15679339 (or 15679326 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 12543455200 its reverse (255434521), we get a palindrome (12798889721).

The spelling of 12543455200 in words is "twelve billion, five hundred forty-three million, four hundred fifty-five thousand, two hundred".