12408921600 has 120 divisors (see below), whose sum is σ = 40992223800. Its totient is φ = 3309035520.

The previous prime is 12408921599. The next prime is 12408921611. The reversal of 12408921600 is 612980421.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123175 + ... + 199974.

It is an arithmetic number, because the mean of its divisors is an integer number (341601865).

Almost surely, 2^12408921600 is an apocalyptic number.

12408921600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12408921600 is an abundant number, since it is smaller than the sum of its proper divisors (28583302200).

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

12408921600 is an equidigital number, since it uses as much as digits as its factorization.

12408921600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323180 (or 323159 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 12408921600 in words is "twelve billion, four hundred eight million, nine hundred twenty-one thousand, six hundred".