63993600000 has 864 divisors, whose sum is σ = 254513553840. Its totient is φ = 15360000000.

The previous prime is 63993599977. The next prime is 63993600019. The reversal of 63993600000 is 639936.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 633599950 + ... + 633600050.

Almost surely, 2^63993600000 is an apocalyptic number.

63993600000 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 63993600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127256776920).

63993600000 is an abundant number, since it is smaller than the sum of its proper divisors (190519953840).

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

63993600000 is a wasteful number, since it uses less digits than its factorization.

63993600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

63993600000 divided by its reverse (639936) gives a 5-th power (100000 = 10⁵).

It can be divided in two parts, 639 and 93600000, that added together give a palindrome (93600639).

The spelling of 63993600000 in words is "sixty-three billion, nine hundred ninety-three million, six hundred thousand".