63734386716 has 576 divisors, whose sum is σ = 227825934336. Its totient is φ = 14480294400.

The previous prime is 63734386699. The next prime is 63734386757. The reversal of 63734386716 is 61768343736.

It is a congruent number.

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 191 ways as a sum of consecutive naturals, for example, 108576175 + ... + 108576761.

It is an arithmetic number, because the mean of its divisors is an integer number (395531136).

Almost surely, 2^63734386716 is an apocalyptic number.

63734386716 is a gapful number since it is divisible by the number (66) 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 63734386716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113912967168).

63734386716 is an abundant number, since it is smaller than the sum of its proper divisors (164091547620).

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

63734386716 is a wasteful number, since it uses less digits than its factorization.

63734386716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 777 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The spelling of 63734386716 in words is "sixty-three billion, seven hundred thirty-four million, three hundred eighty-six thousand, seven hundred sixteen".