63276318720 has 420 divisors, whose sum is σ = 228379743900. Its totient is φ = 16760438784.

The previous prime is 63276318713. The next prime is 63276318733. The reversal of 63276318720 is 2781367236.

63276318720 is a `hidden beast` number, since 6 + 3 + 2 + 7 + 631 + 8 + 7 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14353956864 + 48922361856 = 119808^2 + 221184^2 .

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

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 424673206 + ... + 424673354.

It is an arithmetic number, because the mean of its divisors is an integer number (543761295).

Almost surely, 2^63276318720 is an apocalyptic number.

63276318720 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 63276318720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114189871950).

63276318720 is an abundant number, since it is smaller than the sum of its proper divisors (165103425180).

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

63276318720 is an frugal number, since it uses more digits than its factorization.

63276318720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 63276318720 in words is "sixty-three billion, two hundred seventy-six million, three hundred eighteen thousand, seven hundred twenty".