63564283872 has 48 divisors (see below), whose sum is σ = 185395830480. Its totient is φ = 21188094336.

The previous prime is 63564283843. The next prime is 63564283879. The reversal of 63564283872 is 27838246536.

63564283872 is a `hidden beast` number, since 6 + 3 + 564 + 2 + 8 + 3 + 8 + 72 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63564283879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36784023 + ... + 36785750.

It is an arithmetic number, because the mean of its divisors is an integer number (3862413135).

Almost surely, 2^63564283872 is an apocalyptic number.

It is an amenable number.

63564283872 is an abundant number, since it is smaller than the sum of its proper divisors (121831546608).

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

63564283872 is a wasteful number, since it uses less digits than its factorization.

63564283872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73569792 (or 73569778 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 63564283872 in words is "sixty-three billion, five hundred sixty-four million, two hundred eighty-three thousand, eight hundred seventy-two".