63785316378 has 32 divisors (see below), whose sum is σ = 154371187584. Its totient is φ = 17152353792.

The previous prime is 63785316337. The next prime is 63785316431. The reversal of 63785316378 is 87361358736.

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, 44666875 + ... + 44668302.

It is an arithmetic number, because the mean of its divisors is an integer number (4824099612).

Almost surely, 2^63785316378 is an apocalyptic number.

63785316378 is an abundant number, since it is smaller than the sum of its proper divisors (90585871206).

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

63785316378 is a wasteful number, since it uses less digits than its factorization.

63785316378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89335206.

The product of its digits is 15240960, while the sum is 57.

The spelling of 63785316378 in words is "sixty-three billion, seven hundred eighty-five million, three hundred sixteen thousand, three hundred seventy-eight".