63820975680000 has 8400 divisors, whose sum is σ = 334496022759360. Its totient is φ = 11824496640000.

The previous prime is 63820975679987. The next prime is 63820975680149. The reversal of 63820975680000 is 8657902836.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8400).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 839 ways as a sum of consecutive naturals, for example, 3358998719991 + ... + 3358998720009.

Almost surely, 2^{63820975680000} is an apocalyptic number.

63820975680000 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 63820975680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167248011379680).

63820975680000 is an abundant number, since it is smaller than the sum of its proper divisors (270675047079360).

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

63820975680000 is an equidigital number, since it uses as much as digits as its factorization.

63820975680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 63820975680000 in words is "sixty-three trillion, eight hundred twenty billion, nine hundred seventy-five million, six hundred eighty thousand".