63504650816 has 28 divisors (see below), whose sum is σ = 126105531888. Its totient is φ = 31730028672.

The previous prime is 63504650809. The next prime is 63504650831. The reversal of 63504650816 is 61805640536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256346 + ... + 439001.

It is an arithmetic number, because the mean of its divisors is an integer number (4503768996).

Almost surely, 2^63504650816 is an apocalyptic number.

It is an amenable number.

63504650816 is a deficient number, since it is larger than the sum of its proper divisors (62600881072).

63504650816 is a wasteful number, since it uses less digits than its factorization.

63504650816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696786 (or 696776 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 63504650816 in words is "sixty-three billion, five hundred four million, six hundred fifty thousand, eight hundred sixteen".