63884878676 has 12 divisors (see below), whose sum is σ = 111818877408. Its totient is φ = 31936627992.

The previous prime is 63884878661. The next prime is 63884878721. The reversal of 63884878676 is 67687848836.

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 3 ways as a sum of consecutive naturals, for example, 1428056 + ... + 1472111.

It is an arithmetic number, because the mean of its divisors is an integer number (9318239784).

Almost surely, 2^63884878676 is an apocalyptic number.

It is an amenable number.

63884878676 is a deficient number, since it is larger than the sum of its proper divisors (47933998732).

63884878676 is a wasteful number, since it uses less digits than its factorization.

63884878676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905678 (or 2905676 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 71.

The spelling of 63884878676 in words is "sixty-three billion, eight hundred eighty-four million, eight hundred seventy-eight thousand, six hundred seventy-six".