63564846536 has 8 divisors (see below), whose sum is σ = 119184087270. Its totient is φ = 31782423264.

The previous prime is 63564846533. The next prime is 63564846571.

63564846536 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 47128068100 + 16436778436 = 217090^2 + 128206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (63564846533) 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 as a sum of consecutive naturals, namely, 3972802901 + ... + 3972802916.

Almost surely, 2^63564846536 is an apocalyptic number.

It is an amenable number.

63564846536 is a deficient number, since it is larger than the sum of its proper divisors (55619240734).

63564846536 is a wasteful number, since it uses less digits than its factorization.

63564846536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945605823 (or 7945605819 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 56.

The spelling of 63564846536 in words is "sixty-three billion, five hundred sixty-four million, eight hundred forty-six thousand, five hundred thirty-six".