63778674783 has 8 divisors (see below), whose sum is σ = 89513929600. Its totient is φ = 40281268248.

The previous prime is 63778674781. The next prime is 63778674787. The reversal of 63778674783 is 38747687736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63778674783 - 2¹ = 63778674781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63778674781) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 559462003 + ... + 559462116.

It is an arithmetic number, because the mean of its divisors is an integer number (11189241200).

Almost surely, 2^63778674783 is an apocalyptic number.

63778674783 is a deficient number, since it is larger than the sum of its proper divisors (25735254817).

63778674783 is a wasteful number, since it uses less digits than its factorization.

63778674783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118924141.

The product of its digits is 199148544, while the sum is 66.

The spelling of 63778674783 in words is "sixty-three billion, seven hundred seventy-eight million, six hundred seventy-four thousand, seven hundred eighty-three".