63780774772 has 48 divisors (see below), whose sum is σ = 136831024512. Its totient is φ = 25597630080.

The previous prime is 63780774721. The next prime is 63780774781. The reversal of 63780774772 is 27747708736.

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 15 ways as a sum of consecutive naturals, for example, 2410863 + ... + 2437174.

It is an arithmetic number, because the mean of its divisors is an integer number (2850646344).

Almost surely, 2^63780774772 is an apocalyptic number.

It is an amenable number.

63780774772 is an abundant number, since it is smaller than the sum of its proper divisors (73050249740).

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

63780774772 is a wasteful number, since it uses less digits than its factorization.

63780774772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848088 (or 4848086 counting only the distinct ones).

The product of its (nonzero) digits is 19361664, while the sum is 58.

The spelling of 63780774772 in words is "sixty-three billion, seven hundred eighty million, seven hundred seventy-four thousand, seven hundred seventy-two".