63728782748 has 12 divisors (see below), whose sum is σ = 111723465000. Its totient is φ = 31807792752.

The previous prime is 63728782729. The next prime is 63728782751. The reversal of 63728782748 is 84728782736.

It is a super-2 number, since 2×63728782748² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14147123 + ... + 14151626.

It is an arithmetic number, because the mean of its divisors is an integer number (9310288750).

Almost surely, 2^63728782748 is an apocalyptic number.

It is an amenable number.

63728782748 is a deficient number, since it is larger than the sum of its proper divisors (47994682252).

63728782748 is a wasteful number, since it uses less digits than its factorization.

63728782748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28299316 (or 28299314 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 62.

The spelling of 63728782748 in words is "sixty-three billion, seven hundred twenty-eight million, seven hundred eighty-two thousand, seven hundred forty-eight".