63567257968 has 40 divisors (see below), whose sum is σ = 125343606960. Its totient is φ = 31221335040.

The previous prime is 63567257947. The next prime is 63567257981. The reversal of 63567257968 is 86975276536.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260046 + ... + 1309522.

It is an arithmetic number, because the mean of its divisors is an integer number (3133590174).

Almost surely, 2^63567257968 is an apocalyptic number.

It is an amenable number.

63567257968 is a deficient number, since it is larger than the sum of its proper divisors (61776348992).

63567257968 is a wasteful number, since it uses less digits than its factorization.

63567257968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50905 (or 50899 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 64.

The spelling of 63567257968 in words is "sixty-three billion, five hundred sixty-seven million, two hundred fifty-seven thousand, nine hundred sixty-eight".