63998247600 has 1440 divisors, whose sum is σ = 285536010240. Its totient is φ = 12939264000.

The previous prime is 63998247589. The next prime is 63998247613. The reversal of 63998247600 is 674289936.

It is a happy number.

63998247600 is a `hidden beast` number, since 6 + 3 + 9 + 9 + 8 + 24 + 7 + 600 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 810104361 + ... + 810104439.

It is an arithmetic number, because the mean of its divisors is an integer number (198288896).

Almost surely, 2^63998247600 is an apocalyptic number.

63998247600 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 63998247600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142768005120).

63998247600 is an abundant number, since it is smaller than the sum of its proper divisors (221537762640).

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

63998247600 is a wasteful number, since it uses less digits than its factorization.

63998247600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 63998247600 in words is "sixty-three billion, nine hundred ninety-eight million, two hundred forty-seven thousand, six hundred".