64053317117 has 4 divisors (see below), whose sum is σ = 66262052220. Its totient is φ = 61844582016.

The previous prime is 64053317093. The next prime is 64053317143. The reversal of 64053317117 is 71171335046.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18023331001 + 46029986116 = 134251^2 + 214546^2 .

It is a cyclic number.

It is not a de Polignac number, because 64053317117 - 2¹² = 64053313021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64053317197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104367508 + ... + 1104367565.

It is an arithmetic number, because the mean of its divisors is an integer number (16565513055).

Almost surely, 2^64053317117 is an apocalyptic number.

It is an amenable number.

64053317117 is a deficient number, since it is larger than the sum of its proper divisors (2208735103).

64053317117 is a wasteful number, since it uses less digits than its factorization.

64053317117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208735102.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 64053317117 in words is "sixty-four billion, fifty-three million, three hundred seventeen thousand, one hundred seventeen".