64584850745 has 16 divisors (see below), whose sum is σ = 79010448960. Its totient is φ = 50667249600.

The previous prime is 64584850721. The next prime is 64584850763. The reversal of 64584850745 is 54705848546.

It is not a de Polignac number, because 64584850745 - 2¹⁴ = 64584834361 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218915 + ... + 420824.

It is an arithmetic number, because the mean of its divisors is an integer number (4938153060).

Almost surely, 2^64584850745 is an apocalyptic number.

It is an amenable number.

64584850745 is a deficient number, since it is larger than the sum of its proper divisors (14425598215).

64584850745 is a wasteful number, since it uses less digits than its factorization.

64584850745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640136.

The product of its (nonzero) digits is 21504000, while the sum is 56.

The spelling of 64584850745 in words is "sixty-four billion, five hundred eighty-four million, eight hundred fifty thousand, seven hundred forty-five".