63976108020 has 384 divisors, whose sum is σ = 213663744000. Its totient is φ = 14130547200.

The previous prime is 63976107997. The next prime is 63976108057. The reversal of 63976108020 is 2080167936.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 77358847 + ... + 77359673.

It is an arithmetic number, because the mean of its divisors is an integer number (556416000).

Almost surely, 2^63976108020 is an apocalyptic number.

63976108020 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 63976108020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106831872000).

63976108020 is an abundant number, since it is smaller than the sum of its proper divisors (149687635980).

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

63976108020 is a wasteful number, since it uses less digits than its factorization.

63976108020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 63976108020 in words is "sixty-three billion, nine hundred seventy-six million, one hundred eight thousand, twenty".