63703740816 has 405 divisors, whose sum is σ = 200267823873. Its totient is φ = 19626312960.

The previous prime is 63703740781. The next prime is 63703740889. The reversal of 63703740816 is 61804730736.

The square root of 63703740816 is 252396.

It is a perfect power (a square), and thus also a powerful number.

63703740816 is a `hidden beast` number, since 637 + 0 + 3 + 7 + 4 + 0 + 8 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3069603216 + 60634137600 = 55404^2 + 246240^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1553749756 + ... + 1553749796.

Almost surely, 2^63703740816 is an apocalyptic number.

63703740816 is the 252396-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63703740816

63703740816 is an abundant number, since it is smaller than the sum of its proper divisors (136564083057).

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

63703740816 is an frugal number, since it uses more digits than its factorization.

63703740816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 63703740816 in words is "sixty-three billion, seven hundred three million, seven hundred forty thousand, eight hundred sixteen".