64318650928843 has 4 divisors (see below), whose sum is σ = 66393446120128. Its totient is φ = 62243855737560.

The previous prime is 64318650928837. The next prime is 64318650928913. The reversal of 64318650928843 is 34882905681346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64318650928843 - 2²¹ = 64318648831691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64318650929843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037397595596 + ... + 1037397595657.

It is an arithmetic number, because the mean of its divisors is an integer number (16598361530032).

Almost surely, 2^{64318650928843} is an apocalyptic number.

64318650928843 is a deficient number, since it is larger than the sum of its proper divisors (2074795191285).

64318650928843 is a wasteful number, since it uses less digits than its factorization.

64318650928843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074795191284.

The product of its (nonzero) digits is 238878720, while the sum is 67.

The spelling of 64318650928843 in words is "sixty-four trillion, three hundred eighteen billion, six hundred fifty million, nine hundred twenty-eight thousand, eight hundred forty-three".