64543525024 has 24 divisors (see below), whose sum is σ = 138621889728. Its totient is φ = 29337965760.

The previous prime is 64543524961. The next prime is 64543525049. The reversal of 64543525024 is 42052534546.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91680792 + ... + 91681495.

It is an arithmetic number, because the mean of its divisors is an integer number (5775912072).

Almost surely, 2^64543525024 is an apocalyptic number.

It is an amenable number.

64543525024 is an abundant number, since it is smaller than the sum of its proper divisors (74078364704).

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

64543525024 is a wasteful number, since it uses less digits than its factorization.

64543525024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183362308 (or 183362300 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 64543525024 in words is "sixty-four billion, five hundred forty-three million, five hundred twenty-five thousand, twenty-four".