63768820104 has 112 divisors (see below), whose sum is σ = 195565068720. Its totient is φ = 19323865440.

The previous prime is 63768820097. The next prime is 63768820109. The reversal of 63768820104 is 40102886736.

63768820104 is a `hidden beast` number, since 637 + 6 + 8 + 8 + 2 + 0 + 1 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63768820104.

It is not an unprimeable number, because it can be changed into a prime (63768820109) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 432862 + ... + 561165.

It is an arithmetic number, because the mean of its divisors is an integer number (1746116685).

Almost surely, 2^63768820104 is an apocalyptic number.

It is an amenable number.

63768820104 is an abundant number, since it is smaller than the sum of its proper divisors (131796248616).

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

63768820104 is a wasteful number, since it uses less digits than its factorization.

63768820104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994062 (or 994043 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 63768820104 in words is "sixty-three billion, seven hundred sixty-eight million, eight hundred twenty thousand, one hundred four".