63942947056 has 10 divisors (see below), whose sum is σ = 123889459952. Its totient is φ = 31971473520.

The previous prime is 63942947023. The next prime is 63942947063. The reversal of 63942947056 is 65074924936.

It is a junction number, because it is equal to n+sod(n) for n = 63942946988 and 63942947006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998217080 + ... + 1998217111.

Almost surely, 2^63942947056 is an apocalyptic number.

It is an amenable number.

63942947056 is a deficient number, since it is larger than the sum of its proper divisors (59946512896).

63942947056 is a wasteful number, since it uses less digits than its factorization.

63942947056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996434199 (or 3996434193 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 63942947056 in words is "sixty-three billion, nine hundred forty-two million, nine hundred forty-seven thousand, fifty-six".