64842530468 has 12 divisors (see below), whose sum is σ = 113476925772. Its totient is φ = 32420551680.

The previous prime is 64842530369. The next prime is 64842530479. The reversal of 64842530468 is 86403524846.

It can be written as a sum of positive squares in 2 ways, for example, as 55371737344 + 9470793124 = 235312^2 + 97318^2 .

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, 62096 + ... + 365432.

It is an arithmetic number, because the mean of its divisors is an integer number (9456410481).

Almost surely, 2^64842530468 is an apocalyptic number.

It is an amenable number.

64842530468 is a deficient number, since it is larger than the sum of its proper divisors (48634395304).

64842530468 is a wasteful number, since it uses less digits than its factorization.

64842530468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356782 (or 356780 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 50.

The spelling of 64842530468 in words is "sixty-four billion, eight hundred forty-two million, five hundred thirty thousand, four hundred sixty-eight".