12549451200 has 672 divisors, whose sum is σ = 49526830080. Its totient is φ = 2741452800.

The previous prime is 12549451183. The next prime is 12549451241. The reversal of 12549451200 is 215494521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32260606 + ... + 32260994.

It is an arithmetic number, because the mean of its divisors is an integer number (73700640).

Almost surely, 2^12549451200 is an apocalyptic number.

12549451200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12549451200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24763415040).

12549451200 is an abundant number, since it is smaller than the sum of its proper divisors (36977378880).

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

12549451200 is a wasteful number, since it uses less digits than its factorization.

12549451200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 12549451200 in words is "twelve billion, five hundred forty-nine million, four hundred fifty-one thousand, two hundred".