64384235109 has 12 divisors (see below), whose sum is σ = 93001794496. Its totient is φ = 42921741672.

The previous prime is 64384235081. The next prime is 64384235119. The reversal of 64384235109 is 90153248346.

64384235109 is a `hidden beast` number, since 64 + 38 + 42 + 3 + 510 + 9 = 666.

It is not a de Polignac number, because 64384235109 - 2¹⁵ = 64384202341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64384235119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470004 + ... + 591330.

Almost surely, 2^64384235109 is an apocalyptic number.

It is an amenable number.

64384235109 is a deficient number, since it is larger than the sum of its proper divisors (28617559387).

64384235109 is a wasteful number, since it uses less digits than its factorization.

64384235109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180296 (or 180293 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 64384235109 in words is "sixty-four billion, three hundred eighty-four million, two hundred thirty-five thousand, one hundred nine".