63449573616000 has 4608 divisors, whose sum is σ = 288990536140800. Its totient is φ = 13557473280000.

The previous prime is 63449573615977. The next prime is 63449573616007. The reversal of 63449573616000 is 61637594436.

63449573616000 is a `hidden beast` number, since 6 + 3 + 4 + 4 + 9 + 573 + 6 + 1 + 60 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63449573616007) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 1349990927977 + ... + 1349990928023.

It is an arithmetic number, because the mean of its divisors is an integer number (62714960100).

Almost surely, 2^{63449573616000} is an apocalyptic number.

63449573616000 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 63449573616000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144495268070400).

63449573616000 is an abundant number, since it is smaller than the sum of its proper divisors (225540962524800).

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

63449573616000 is a wasteful number, since it uses less digits than its factorization.

63449573616000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 63449573616000 in words is "sixty-three trillion, four hundred forty-nine billion, five hundred seventy-three million, six hundred sixteen thousand".