64368195727 has 8 divisors (see below), whose sum is σ = 71544753360. Its totient is φ = 57412455360.

The previous prime is 64368195721. The next prime is 64368195751. The reversal of 64368195727 is 72759186346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64368195727 - 2³ = 64368195719 is a prime.

It is a super-2 number, since 2×64368195727² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64368195721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55203702 + ... + 55204867.

It is an arithmetic number, because the mean of its divisors is an integer number (8943094170).

Almost surely, 2^64368195727 is an apocalyptic number.

64368195727 is a deficient number, since it is larger than the sum of its proper divisors (7176557633).

64368195727 is a wasteful number, since it uses less digits than its factorization.

64368195727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110408633.

The product of its digits is 15240960, while the sum is 58.

The spelling of 64368195727 in words is "sixty-four billion, three hundred sixty-eight million, one hundred ninety-five thousand, seven hundred twenty-seven".