63310983680 has 320 divisors, whose sum is σ = 177870401280. Its totient is φ = 21164457984.

The previous prime is 63310983577. The next prime is 63310983683. The reversal of 63310983680 is 8638901336.

It is a tau number, because it is divible by the number of its divisors (320).

It is not an unprimeable number, because it can be changed into a prime (63310983683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246346112 + ... + 246346368.

It is an arithmetic number, because the mean of its divisors is an integer number (555845004).

Almost surely, 2^63310983680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63310983680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88935200640).

63310983680 is an abundant number, since it is smaller than the sum of its proper divisors (114559417600).

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

63310983680 is a wasteful number, since it uses less digits than its factorization.

63310983680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 63310983680 in words is "sixty-three billion, three hundred ten million, nine hundred eighty-three thousand, six hundred eighty".