64524534508868 has 12 divisors (see below), whose sum is σ = 129049069017792. Its totient is φ = 27653371932360.

The previous prime is 64524534508867. The next prime is 64524534508921. The reversal of 64524534508868 is 86880543542546.

64524534508868 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 64524534508798 and 64524534508807.

It is not an unprimeable number, because it can be changed into a prime (64524534508867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152223830488 + ... + 1152223830543.

It is an arithmetic number, because the mean of its divisors is an integer number (10754089084816).

Almost surely, 2^{64524534508868} is an apocalyptic number.

It is an amenable number.

64524534508868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64524534508868 is a wasteful number, since it uses less digits than its factorization.

64524534508868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304447661042 (or 2304447661040 counting only the distinct ones).

The product of its (nonzero) digits is 884736000, while the sum is 68.

The spelling of 64524534508868 in words is "sixty-four trillion, five hundred twenty-four billion, five hundred thirty-four million, five hundred eight thousand, eight hundred sixty-eight".