6451463606400 has 576 divisors, whose sum is σ = 24403675252320. Its totient is φ = 1617248747520.

The previous prime is 6451463606363. The next prime is 6451463606447. The reversal of 6451463606400 is 46063641546.

6451463606400 is a `hidden beast` number, since 6 + 4 + 5 + 1 + 4 + 636 + 0 + 6 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 432309339 + ... + 432324261.

Almost surely, 2^{6451463606400} is an apocalyptic number.

6451463606400 is a gapful number since it is divisible by the number (60) 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 6451463606400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12201837626160).

6451463606400 is an abundant number, since it is smaller than the sum of its proper divisors (17952211645920).

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

6451463606400 is a wasteful number, since it uses less digits than its factorization.

6451463606400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15853 (or 15833 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 6451463606400 in words is "six trillion, four hundred fifty-one billion, four hundred sixty-three million, six hundred six thousand, four hundred".