63789443680 has 48 divisors (see below), whose sum is σ = 150725942640. Its totient is φ = 25511818752.

The previous prime is 63789443639. The next prime is 63789443687. The reversal of 63789443680 is 8634498736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63789443687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142167 + ... + 1196713.

It is an arithmetic number, because the mean of its divisors is an integer number (3140123805).

Almost surely, 2^63789443680 is an apocalyptic number.

It is an amenable number.

63789443680 is an abundant number, since it is smaller than the sum of its proper divisors (86936498960).

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

63789443680 is a wasteful number, since it uses less digits than its factorization.

63789443680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61871 (or 61863 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 63789443680 in words is "sixty-three billion, seven hundred eighty-nine million, four hundred forty-three thousand, six hundred eighty".