12451864320000 has 4320 divisors, whose sum is σ = 58393411876800. Its totient is φ = 2633637888000.

The previous prime is 12451864319989. The next prime is 12451864320017. The reversal of 12451864320000 is 2346815421.

It is a happy number.

12451864320000 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 1 + 8 + 643 + 2 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 289578239979 + ... + 289578240021.

It is an arithmetic number, because the mean of its divisors is an integer number (13516993490).

Almost surely, 2^{12451864320000} is an apocalyptic number.

12451864320000 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 12451864320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29196705938400).

12451864320000 is an abundant number, since it is smaller than the sum of its proper divisors (45941547556800).

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

12451864320000 is an frugal number, since it uses more digits than its factorization.

12451864320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 12451864320000 in words is "twelve trillion, four hundred fifty-one billion, eight hundred sixty-four million, three hundred twenty thousand".