63213888384 has 48 divisors (see below), whose sum is σ = 181904551920. Its totient is φ = 21071295744.

The previous prime is 63213888347. The next prime is 63213888389. The reversal of 63213888384 is 48388831236.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 63213888384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63213888389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27435432 + ... + 27437735.

It is an arithmetic number, because the mean of its divisors is an integer number (3789678165).

Almost surely, 2^63213888384 is an apocalyptic number.

63213888384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

63213888384 is an abundant number, since it is smaller than the sum of its proper divisors (118690663536).

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

63213888384 is a wasteful number, since it uses less digits than its factorization.

63213888384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54873187 (or 54873172 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 63213888384 in words is "sixty-three billion, two hundred thirteen million, eight hundred eighty-eight thousand, three hundred eighty-four".