63680851368 has 48 divisors (see below), whose sum is σ = 172695755700. Its totient is φ = 21199038720.

The previous prime is 63680851309. The next prime is 63680851439. The reversal of 63680851368 is 86315808636.

63680851368 is a `hidden beast` number, since 6 + 3 + 68 + 0 + 8 + 513 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56930914404 + 6749936964 = 238602^2 + 82158^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526323 + ... + 635906.

Almost surely, 2^63680851368 is an apocalyptic number.

It is an amenable number.

63680851368 is an abundant number, since it is smaller than the sum of its proper divisors (109014904332).

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

63680851368 is a wasteful number, since it uses less digits than its factorization.

63680851368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163002 (or 1162995 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 63680851368 in words is "sixty-three billion, six hundred eighty million, eight hundred fifty-one thousand, three hundred sixty-eight".