63449788416000 has 1024 divisors, whose sum is σ = 242285206026240. Its totient is φ = 14445025689600.

The previous prime is 63449788415999. The next prime is 63449788416067. The reversal of 63449788416000 is 61488794436.

It is a tau number, because it is divible by the number of its divisors (1024).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23826430669 + ... + 23826433331.

It is an arithmetic number, because the mean of its divisors is an integer number (236606646510).

Almost surely, 2^{63449788416000} is an apocalyptic number.

63449788416000 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 63449788416000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121142603013120).

63449788416000 is an abundant number, since it is smaller than the sum of its proper divisors (178835417610240).

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

63449788416000 is an equidigital number, since it uses as much as digits as its factorization.

63449788416000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 63449788416000 in words is "sixty-three trillion, four hundred forty-nine billion, seven hundred eighty-eight million, four hundred sixteen thousand".