63768256 has 42 divisors (see below), whose sum is σ = 133784340. Its totient is φ = 30074112.

The previous prime is 63768217. The next prime is 63768277. The reversal of 63768256 is 65286736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278350 + ... + 278578.

Almost surely, 2^63768256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63768256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66892170).

63768256 is an abundant number, since it is smaller than the sum of its proper divisors (70016084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63768256 is an equidigital number, since it uses as much as digits as its factorization.

63768256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 250 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 63768256 is about 7985.5028645665. The cubic root of 63768256 is about 399.5166160853.

The spelling of 63768256 in words is "sixty-three million, seven hundred sixty-eight thousand, two hundred fifty-six".